CVE-2026-84144
Internally found bugs fixed in Thunderbird 155 and Thunderbird ESR 153.2
Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
7.5
Internally found bugs fixed in Thunderbird 155 and Thunderbird ESR 153.2
Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
- Record
CVE-2026-84144- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
EUVDEUVD-2026-69092
7.5
Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
- Record
EUVD-2026-69092- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-458m-m9vv-frq3
7.5
Internally found bugs present in Firefox 154 and Firefox ESR 153.1. Some of these bugs showed...
Internally found bugs present in Firefox 154 and Firefox ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155 and Firefox ESR 153.2.
- Record
GHSA-458m-m9vv-frq3- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
NVD
7.5
Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
- Record
CVE-2026-84144- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-84144
7.5
Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
- Record
UBUNTU-CVE-2026-84144- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVMGASA-2026-0387 No score
Updated firefox & nss packages fix security vulnerabilities
Sandbox escape in the Remote Settings Client component. (CVE-2026-75874) Privilege escalation in the DOM: Workers component. (CVE-2026-16365) Use-after-free in the JavaScript: GC component. (CVE-2026-84118) Sandbox escape due to use-after-free in the DOM: Navigation component. (CVE-2026-84119) Use-after-free in the Audio/Video component. (CVE-2026-84120) Sandbox escape due to use-after-free in the DOM: Security component. (CVE-2026-84121) Use-after-free in the Audio/Video component. (CVE-2026-84122) Privilege escalation due to use-after-free in the Graphics: WebGPU component. (CVE-2026-84123) Use-after-free in the DOM: Core & HTML component. (CVE-2026-84124) Use-after-free in the DOM: Core & HTML component. (CVE-2026-84125) Privilege escalation in the DOM: Navigation component. (CVE-2026-16371) Privilege escalation in the Application Update component. (CVE-2026-74952) Site isolation issue in the DOM: Navigation component. (CVE-2026-84129) Information disclosure in the Graphics: WebGPU component. (CVE-2026-84130) Privilege escalation due to invalid pointer in the Graphics component. (CVE-2026-84131) Information disclosure in the Networking: HTTP component. (CVE-2026-84132) Site isolation issue in the DOM: Push Subscriptions component. (CVE-2026-84133) Other issue in the Profile Backup component. (CVE-2026-84134) Other issue in the DOM: Navigation component. (CVE-2026-84136) Spoofing issue in the DOM: Core & HTML component. (CVE-2026-84137) Clickjacking issue in the DOM: Events component. (CVE-2026-84139) Site isolation issue in the DOM: Navigation component. (CVE-2026-84140) Integer overflow in the Graphics: ImageLib component. (CVE-2026-84141) Internally found bugs fixed in Firefox 155, Firefox ESR 153.2 and Firefox ESR 140.15. (CVE-2026-84143) Internally found bugs fixed in Firefox 155 and Firefox ESR 153.2. (CVE-2026-84144) Internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40. (CVE-2026-84145)
- Record
MGASA-2026-0387- Updated
- 2026-11-02
Show 9 moreShow less
OSVMGASA-2026-0388 No score
Updated thunderbird packages fix security vulnerabilities
Uninitialized memory in MIME parsing. (CVE-2026-84639) One byte overflow read in mail parser. (CVE-2026-84640) Information disclosure due to malicious IMAP server response. (CVE-2026-84641) Calendar invitation attachments could launch local executables. (CVE-2026-84637) Allowed UNC hostnames for attachments interpreted as a regular expression. (CVE-2026-84642) Sandbox escape in the Remote Settings Client component. (CVE-2026-75874) Privilege escalation in the DOM: Workers component. (CVE-2026-16365) Use-after-free in the JavaScript: GC component. (CVE-2026-84118) Sandbox escape due to use-after-free in the DOM: Navigation component. (CVE-2026-84119) Use-after-free in the Audio/Video component. (CVE-2026-84120) Sandbox escape due to use-after-free in the DOM: Security component. (CVE-2026-84121) Use-after-free in the Audio/Video component. (CVE-2026-84122) Privilege escalation due to use-after-free in the Graphics: WebGPU component. (CVE-2026-84123) Use-after-free in the DOM: Core & HTML component. (CVE-2026-84124) Use-after-free in the DOM: Core & HTML component. (CVE-2026-84125) Privilege escalation in the DOM: Navigation component. (CVE-2026-16371) Privilege escalation in the Application Update component. (CVE-2026-74952) Site isolation issue in the DOM: Navigation component. (CVE-2026-84129) Information disclosure in the Graphics: WebGPU component. (CVE-2026-84130) Privilege escalation due to invalid pointer in the Graphics component. (CVE-2026-84131) Information disclosure in the Networking: HTTP component. (CVE-2026-84132) Site isolation issue in the DOM: Push Subscriptions component. (CVE-2026-84133) Other issue in the Profile Backup component. (CVE-2026-84134) Other issue in the DOM: Navigation component. (CVE-2026-84136) Spoofing issue in the DOM: Core & HTML component. (CVE-2026-84137) Clickjacking issue in the DOM: Events component. (CVE-2026-84139) Site isolation issue in the DOM: Navigation component. (CVE-2026-84140) Integer overflow in the Graphics: ImageLib component. (CVE-2026-84141) Internally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15. (CVE-2026-84143) Internally found bugs fixed in Thunderbird 155 and Thunderbird ESR 153.2. (CVE-2026-84144) Internally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15. (CVE-2026-84145)
- Record
MGASA-2026-0388- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:11666-1 No score
firefox-esr-153.2.0-1.1 on GA media
These are all security issues fixed in the firefox-esr-153.2.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:11666-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:11677-1 No score
MozillaFirefox-155.0-1.1 on GA media
These are all security issues fixed in the MozillaFirefox-155.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:11677-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:12098-1 No score
MozillaThunderbird-153.4.0-1.1 on GA media
These are all security issues fixed in the MozillaThunderbird-153.4.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:12098-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:21853-1 No score
Security update for MozillaFirefox
This update for MozillaFirefox fixes the following issues:
Firefox Extended Support Release 153.2.0 ESR MFSA 2026-85 (bsc#1278001):
- CVE-2026-75874 (bmo#2039972) Sandbox escape in the Remote Settings Client component
- CVE-2026-84118 (bmo#2057457) Use-after-free in the JavaScript: GC component
- CVE-2026-84119 (bmo#2057817) Sandbox escape due to use-after-free in the DOM: Navigation component
- CVE-2026-84120 (bmo#2058911) Use-after-free in the Audio/Video component
- CVE-2026-84121 (bmo#2059018) Sandbox escape due to use-after-free in the DOM: Security
- CVE-2026-84122 (bmo#2059965)
- CVE-2026-84123 (bmo#2060047) Privilege escalation due to use-after-free in the Graphics: WebGPU component
- CVE-2026-84124 (bmo#2061110) Use-after-free in the DOM: Core & HTML component
- CVE-2026-84125 (bmo#2063871)
- CVE-2026-74952 (bmo#2021757) Privilege escalation in the Application Update component
- CVE-2026-84129 (bmo#2055028) Site isolation issue in the DOM: Navigation component
- CVE-2026-84130 (bmo#2057834) Information disclosure in the Graphics: WebGPU component
- CVE-2026-84131 (bmo#2060008) Privilege escalation due to invalid pointer in the Graphics
- CVE-2026-84132 (bmo#2063020) Information disclosure in the Networking: HTTP component
- CVE-2026-84133 (bmo#2032388) Site isolation issue in the DOM: Push Subscriptions component
- CVE-2026-84134 (bmo#2044882) Other issue in the Profile Backup component
- CVE-2026-84136 (bmo#2048699) Other issue in the DOM: Navigation component
- CVE-2026-84137 (bmo#2051146) Spoofing issue in the DOM: Core & HTML component
- CVE-2026-84139 (bmo#2060153) Clickjacking issue in the DOM: Events component
- CVE-2026-84140 (bmo#2063780)
- CVE-2026-84141 (bmo#2063994) Integer overflow in the Graphics: ImageLib component
- CVE-2026-84143 (bmo#2048793, bmo#2054631, bmo#2054645, bmo#2054657, bmo#2055007, bmo#2055681, bmo#2057107, bmo#2057108, bmo#2057114, bmo#2058087, bmo#2058088, bmo#2058090, bmo#2058095, bmo#2058101, bmo#2059109, bmo#2059183, bmo#2059185, bmo#2061287, bmo#2061301, bmo#2061325) Internally found bugs fixed in Firefox 155, Firefox ESR 153.2 and Firefox ESR 140.15
- CVE-2026-84144 (bmo#2054619, bmo#2054620, bmo#2054624, bmo#2054625, bmo#2054691, bmo#2054702, bmo#2054726, bmo#2054775, bmo#2055703, bmo#2058006, bmo#2058013, bmo#2058085, bmo#2058098, bmo#2058627, bmo#2058661, bmo#2059002, bmo#2059127, bmo#2059128, bmo#2059144, bmo#2059180, bmo#2059191, bmo#2059192, bmo#2059199, bmo#2059205, bmo#2061320, bmo#2061430, bmo#2061495, bmo#2061505, bmo#2061521, bmo#2061532, bmo#2061775, bmo#2061799, bmo#2062395, bmo#2062404) Internally found bugs fixed in Firefox 155 and Firefox ESR 153.2
- CVE-2026-84145 (bmo#2054640, bmo#2054650, bmo#2054652, bmo#2055678, bmo#2055693, bmo#2055705, bmo#2058001, bmo#2058051, bmo#2058652, bmo#2058660, bmo#2059027, bmo#2059139, bmo#2061220, bmo#2061242, bmo#2061285, bmo#2061300, bmo#2061316, bmo#2061397, bmo#2062400, bmo#2062419) Internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40
- Record
openSUSE-SU-2026:21853-1- Updated
- 2026-11-02
OSVSUSE-SU-2026:23784-1 No score
Security update for MozillaFirefox
This update for MozillaFirefox fixes the following issues:
Firefox Extended Support Release 153.2.0 ESR MFSA 2026-85 (bsc#1278001):
- CVE-2026-75874 (bmo#2039972) Sandbox escape in the Remote Settings Client component
- CVE-2026-84118 (bmo#2057457) Use-after-free in the JavaScript: GC component
- CVE-2026-84119 (bmo#2057817) Sandbox escape due to use-after-free in the DOM: Navigation component
- CVE-2026-84120 (bmo#2058911) Use-after-free in the Audio/Video component
- CVE-2026-84121 (bmo#2059018) Sandbox escape due to use-after-free in the DOM: Security
- CVE-2026-84122 (bmo#2059965)
- CVE-2026-84123 (bmo#2060047) Privilege escalation due to use-after-free in the Graphics: WebGPU component
- CVE-2026-84124 (bmo#2061110) Use-after-free in the DOM: Core & HTML component
- CVE-2026-84125 (bmo#2063871)
- CVE-2026-74952 (bmo#2021757) Privilege escalation in the Application Update component
- CVE-2026-84129 (bmo#2055028) Site isolation issue in the DOM: Navigation component
- CVE-2026-84130 (bmo#2057834) Information disclosure in the Graphics: WebGPU component
- CVE-2026-84131 (bmo#2060008) Privilege escalation due to invalid pointer in the Graphics
- CVE-2026-84132 (bmo#2063020) Information disclosure in the Networking: HTTP component
- CVE-2026-84133 (bmo#2032388) Site isolation issue in the DOM: Push Subscriptions component
- CVE-2026-84134 (bmo#2044882) Other issue in the Profile Backup component
- CVE-2026-84136 (bmo#2048699) Other issue in the DOM: Navigation component
- CVE-2026-84137 (bmo#2051146) Spoofing issue in the DOM: Core & HTML component
- CVE-2026-84139 (bmo#2060153) Clickjacking issue in the DOM: Events component
- CVE-2026-84140 (bmo#2063780)
- CVE-2026-84141 (bmo#2063994) Integer overflow in the Graphics: ImageLib component
- CVE-2026-84143 (bmo#2048793, bmo#2054631, bmo#2054645, bmo#2054657, bmo#2055007, bmo#2055681, bmo#2057107, bmo#2057108, bmo#2057114, bmo#2058087, bmo#2058088, bmo#2058090, bmo#2058095, bmo#2058101, bmo#2059109, bmo#2059183, bmo#2059185, bmo#2061287, bmo#2061301, bmo#2061325) Internally found bugs fixed in Firefox 155, Firefox ESR 153.2 and Firefox ESR 140.15
- CVE-2026-84144 (bmo#2054619, bmo#2054620, bmo#2054624, bmo#2054625, bmo#2054691, bmo#2054702, bmo#2054726, bmo#2054775, bmo#2055703, bmo#2058006, bmo#2058013, bmo#2058085, bmo#2058098, bmo#2058627, bmo#2058661, bmo#2059002, bmo#2059127, bmo#2059128, bmo#2059144, bmo#2059180, bmo#2059191, bmo#2059192, bmo#2059199, bmo#2059205, bmo#2061320, bmo#2061430, bmo#2061495, bmo#2061505, bmo#2061521, bmo#2061532, bmo#2061775, bmo#2061799, bmo#2062395, bmo#2062404) Internally found bugs fixed in Firefox 155 and Firefox ESR 153.2
- CVE-2026-84145 (bmo#2054640, bmo#2054650, bmo#2054652, bmo#2055678, bmo#2055693, bmo#2055705, bmo#2058001, bmo#2058051, bmo#2058652, bmo#2058660, bmo#2059027, bmo#2059139, bmo#2061220, bmo#2061242, bmo#2061285, bmo#2061300, bmo#2061316, bmo#2061397, bmo#2062400, bmo#2062419) Internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40
- Record
SUSE-SU-2026:23784-1- Updated
- 2026-11-02
OSVSUSE-SU-2026:4140-1 No score
Security update for MozillaFirefox, mozilla-nspr, mozilla-nss, rust-cbindgen
This update for MozillaFirefox, mozilla-nspr, mozilla-nss, rust-cbindgen fixes the following issues:
Changes in MozillaFirefox:
This update ships Firefox Extended Support Release 153.2.0 ESR
- Fixed: Various security fixes.
MFSA 2026-85 (bsc#1278001):
-
CVE-2026-75874: Sandbox escape in the Remote Settings Client component
-
CVE-2026-84118: Use-after-free in the JavaScript: GC component
-
CVE-2026-84119: Sandbox escape due to use-after-free in the DOM: Navigation component
-
CVE-2026-84120: Use-after-free in the Audio/Video component
-
CVE-2026-84121: Sandbox escape due to use-after-free in the DOM: Security component
-
CVE-2026-84122: Use-after-free in the Audio/Video component
-
CVE-2026-84123: Privilege escalation due to use-after-free in the Graphics: WebGPU component
-
CVE-2026-84124: Use-after-free in the DOM: Core & HTML component
-
CVE-2026-84125: Use-after-free in the DOM: Core & HTML component
-
CVE-2026-74952: Privilege escalation in the Application Update component
-
CVE-2026-84129: Site isolation issue in the DOM: Navigation component
-
CVE-2026-84130: Information disclosure in the Graphics: WebGPU component
-
CVE-2026-84131: Privilege escalation due to invalid pointer in the Graphics component
-
CVE-2026-84132: Information disclosure in the Networking: HTTP component
-
CVE-2026-84133: Site isolation issue in the DOM: Push Subscriptions component
-
CVE-2026-84134: Other issue in the Profile Backup component
-
CVE-2026-84136: Other issue in the DOM: Navigation component
-
CVE-2026-84137: Spoofing issue in the DOM: Core & HTML component
-
CVE-2026-84139: Clickjacking issue in the DOM: Events component
-
CVE-2026-84140: Site isolation issue in the DOM: Navigation component
-
CVE-2026-84141: Integer overflow in the Graphics: ImageLib component
-
CVE-2026-84143: Internally found bugs fixed in Firefox 155, Firefox ESR 153.2 and Firefox ESR 140.15
-
CVE-2026-84144: Internally found bugs fixed in Firefox 155 and Firefox ESR 153.2
-
CVE-2026-84145: Internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40
-
Fixed: Various security fixes.
MFSA 2026-77 (bsc#1274867)
- CVE-2026-74934 Site isolation issue in the Graphics: CanvasWebGL component
- CVE-2026-74935 Privilege escalation in the DOM: Networking component
- CVE-2026-74936 Use-after-free in the JavaScript: WebAssembly component
- CVE-2026-74937 Use-after-free in the JavaScript: GC component
- CVE-2026-74938 Mitigation bypass in the JavaScript: GC component
- CVE-2026-74939 Privilege escalation in the DOM: Navigation component
- CVE-2026-74940 Use-after-free in the Graphics: Text component
- CVE-2026-74941 Privilege escalation in the Graphics: CanvasWebGL component
- CVE-2026-74942 Privilege escalation in the Remote Settings Client component
- CVE-2026-74943 Use-after-free in the Graphics: ImageLib component
- CVE-2026-74944 Use-after-free in the DOM: Core & HTML component
- CVE-2026-74945 Information disclosure in the Graphics: Text component
- CVE-2026-74946 Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component
- CVE-2026-74947 Privilege escalation due to invalid pointer in the Graphics component
- CVE-2026-74948 Information disclosure in the Graphics component
- CVE-2026-74949 Privilege escalation due to use-after-free in the Graphics: Canvas2D component
- CVE-2026-74950 Privilege escalation in the Downloads API component
- CVE-2026-74953 Privilege escalation in the Networking: Cookies component
- CVE-2026-74954 Information disclosure due to side-channel in the Storage: Cache API component
- CVE-2026-74955 Privilege escalation in the Request Handling component
- CVE-2026-74956 Same-origin policy bypass in the DOM: Service Workers …
- Record
SUSE-SU-2026:4140-1- Updated
- 2026-11-02
OSVSUSE-SU-2026:4156-1 No score
Security update for MozillaFirefox, MozillaFirefox-branding-SLE, mozilla-nspr, mozilla-nss, rust-cbindgen
This update for MozillaFirefox, MozillaFirefox-branding-SLE, mozilla-nspr, mozilla-nss, rust-cbindgen fixes the following issues:
Changes in MozillaFirefox:
Firefox Extended Support Release 153.2.0 ESR
-
Fixed: Various security fixes.
MFSA 2026-85 (bsc#1278001):
-
CVE-2026-75874: Sandbox escape in the Remote Settings Client component
-
CVE-2026-84118: Use-after-free in the JavaScript: GC component
-
CVE-2026-84119: Sandbox escape due to use-after-free in the DOM: Navigation component
-
CVE-2026-84120: Use-after-free in the Audio/Video component
-
CVE-2026-84121: Sandbox escape due to use-after-free in the DOM: Security component
-
CVE-2026-84122: Use-after-free in the Audio/Video component
-
CVE-2026-84123: Privilege escalation due to use-after-free in the Graphics: WebGPU component
-
CVE-2026-84124: Use-after-free in the DOM: Core & HTML component
-
CVE-2026-84125: Use-after-free in the DOM: Core & HTML component
-
CVE-2026-74952: Privilege escalation in the Application Update component
-
CVE-2026-84129: Site isolation issue in the DOM: Navigation component
-
CVE-2026-84130: Information disclosure in the Graphics: WebGPU component
-
CVE-2026-84131: Privilege escalation due to invalid pointer in the Graphics component
-
CVE-2026-84132: Information disclosure in the Networking: HTTP component
-
CVE-2026-84133: Site isolation issue in the DOM: Push Subscriptions component
-
CVE-2026-84134: Other issue in the Profile Backup component
-
CVE-2026-84136: Other issue in the DOM: Navigation component
-
CVE-2026-84137: Spoofing issue in the DOM: Core & HTML component
-
CVE-2026-84139: Clickjacking issue in the DOM: Events component
-
CVE-2026-84140: Site isolation issue in the DOM: Navigation component
-
CVE-2026-84141: Integer overflow in the Graphics: ImageLib component
-
CVE-2026-84143: Internally found bugs fixed in Firefox 155, Firefox ESR 153.2 and Firefox ESR 140.15
-
CVE-2026-84144: Internally found bugs fixed in Firefox 155 and Firefox ESR 153.2
-
CVE-2026-84145: Internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40
-
Fixed: Various security fixes.
MFSA 2026-77 (bsc#1274867):
- CVE-2026-74934: Site isolation issue in the Graphics: CanvasWebGL component
- CVE-2026-74935: Privilege escalation in the DOM: Networking component
- CVE-2026-74936: Use-after-free in the JavaScript: WebAssembly component
- CVE-2026-74937: Use-after-free in the JavaScript: GC component
- CVE-2026-74938: Mitigation bypass in the JavaScript: GC component
- CVE-2026-74939: Privilege escalation in the DOM: Navigation component
- CVE-2026-74940: Use-after-free in the Graphics: Text component
- CVE-2026-74941: Privilege escalation in the Graphics: CanvasWebGL component
- CVE-2026-74942: Privilege escalation in the Remote Settings Client component
- CVE-2026-74943: Use-after-free in the Graphics: ImageLib component
- CVE-2026-74944: Use-after-free in the DOM: Core & HTML component
- CVE-2026-74945: Information disclosure in the Graphics: Text component
- CVE-2026-74946: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component
- CVE-2026-74947: Privilege escalation due to invalid pointer in the Graphics component
- CVE-2026-74948: Information disclosure in the Graphics component
- CVE-2026-74949: Privilege escalation due to use-after-free in the Graphics: Canvas2D component
- CVE-2026-74950: Privilege escalation in the Downloads API component
- CVE-2026-74953: Privilege escalation in the Networking: Cookies component
- CVE-2026-74954: Information disclosure due to side-channel in the Storage: Cache API component
- CVE-2026-74955: Privilege escalation in the Request Handling component
- CVE-2026-74956: Same-origin policy bypass in the DOM: Service Workers component
- CVE-2026-74957: Mitigation bypass in the Safe Browsing…
-
- Record
SUSE-SU-2026:4156-1- Updated
- 2026-11-02
OSVSUSE-SU-2026:4268-1 No score
Security update for MozillaThunderbird
This update for MozillaThunderbird fixes the following issues:
Mozilla Thunderbird 153.2:
- fixed: Deleting an Exchange account retained the outgoing server settings
- fixed: Thunderbird upgrade disabled Settings menu for versions before macOS 13
- fixed: Windows jump list menu no longer functioned correctly
- fixed: Security fixes MFSA 2026-88 (bsc#1278001):
- CVE-2026-84639 Uninitialized memory in MIME parsing
- CVE-2026-84640 One byte overflow read in mail parser
- CVE-2026-84641 Information disclosure due to malicious IMAP server response
- CVE-2026-84637 Calendar invitation attachments could launch local executables
- CVE-2026-84642 Allowed UNC hostnames for attachments interpreted as a regular expression
- CVE-2026-75874 Sandbox escape in the Remote Settings Client component
- CVE-2026-84118 Use-after-free in the JavaScript: GC component
- CVE-2026-84119 Sandbox escape due to use-after-free in the DOM: Navigation component
- CVE-2026-84120 Use-after-free in the Audio/Video component
- CVE-2026-84121 Sandbox escape due to use-after-free in the DOM: Security component
- CVE-2026-84122 Use-after-free in the Audio/Video component
- CVE-2026-84123 Privilege escalation due to use-after-free in the Graphics: WebGPU component
- CVE-2026-84124 Use-after-free in the DOM: Core & HTML component
- CVE-2026-84125 Use-after-free in the DOM: Core & HTML component
- CVE-2026-74952 Privilege escalation in the Application Update component
- CVE-2026-84129 Site isolation issue in the DOM: Navigation component
- CVE-2026-84130 Information disclosure in the Graphics: WebGPU component
- CVE-2026-84131 Privilege escalation due to invalid pointer in the Graphics component
- CVE-2026-84132 Information disclosure in the Networking: HTTP component
- CVE-2026-84133 Site isolation issue in the DOM: Push Subscriptions component
- CVE-2026-84134 Other issue in the Profile Backup component
- CVE-2026-84136 Other issue in the DOM: Navigation component
- CVE-2026-84137 Spoofing issue in the DOM: Core & HTML component
- CVE-2026-84139 Clickjacking issue in the DOM: Events component
- CVE-2026-84140 Site isolation issue in the DOM: Navigation component
- CVE-2026-84141 Integer overflow in the Graphics: ImageLib component
- CVE-2026-84143 Internally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15
- CVE-2026-84144 Internally found bugs fixed in Thunderbird 155 and Thunderbird ESR 153.2
- CVE-2026-84145 Internally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15
-
Mozilla Thunderbird 153.1.1
- fixed: Thunderbird upgrade disabled composition toolbar
- fixed: Draft was not preserved when encrypted message send failed
- fixed: Account Hub prompted for calendar credentials after successful login
- fixed: Thunderbird crash fixes
- fixed: Folder compaction showed incorrect disk space recovery estimates
- fixed: Thunderbird failed to launch GPU process
-
Mozilla Thunderbird 153.1
- fixed: Autoscroll icon was missing directional arrows in scrollable messages
- fixed: Security fixes MFSA 2026-80 (bsc#1274867):
- CVE-2026-74934 Site isolation issue in the Graphics: CanvasWebGL component
- CVE-2026-74935 Privilege escalation in the DOM: Networking component
- CVE-2026-74936 Use-after-free in the JavaScript: WebAssembly component
- CVE-2026-74937 Use-after-free in the JavaScript: GC component
- CVE-2026-74938 Mitigation bypass in the JavaScript: GC component
- CVE-2026-74939 Privilege escalation in the DOM: Navigation component
- CVE-2026-74940 Use-after-free in the Graphics: Text component
- CVE-2026-74941 Privilege escalation in the Graphics:…
- Record
SUSE-SU-2026:4268-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
firefox-l10nMageia:10 From an advisory covering 26 CVEs |
before 153.2.0-1.mga10 | 153.2.0-1.mga10 |
firefoxMageia:10 From an advisory covering 26 CVEs |
before 153.2.0-1.mga10 | 153.2.0-1.mga10 |
nssMageia:10 From an advisory covering 26 CVEs |
before 3.128.0-1.mga10 | 3.128.0-1.mga10 |
firefox-l10nMageia:9 From an advisory covering 26 CVEs |
before 140.15.0-1.mga9 | 140.15.0-1.mga9 |
firefoxMageia:9 From an advisory covering 26 CVEs |
before 140.15.0-1.mga9 | 140.15.0-1.mga9 |
nssMageia:9 From an advisory covering 26 CVEs |
before 3.128.0-1.mga9 | 3.128.0-1.mga9 |
thunderbirdMageia:10 From an advisory covering 31 CVEs |
before 153.2.0-1.mga10 | 153.2.0-1.mga10 |
thunderbird-l10nMageia:10 From an advisory covering 31 CVEs |
before 153.2.0-1.mga10 | 153.2.0-1.mga10 |
thunderbirdMageia:9 From an advisory covering 31 CVEs |
before 140.15.0-1.mga9 | 140.15.0-1.mga9 |
thunderbird-l10nMageia:9 From an advisory covering 31 CVEs |
before 140.15.0-1.mga9 | 140.15.0-1.mga9 |
Show 76 moreShow less
| Package | Affected | Fixed |
|---|---|---|
MozillaFirefoxSUSE:Linux Enterprise Server 16.0 From an advisory covering 24 CVEs |
before 153.2.0-160000.1.1 | 153.2.0-160000.1.1 |
MozillaFirefoxSUSE:Linux Enterprise Server for SAP applications 16.0 From an advisory covering 24 CVEs |
before 153.2.0-160000.1.1 | 153.2.0-160000.1.1 |
MozillaFirefoxSUSE:Linux Enterprise Server 12 SP5-LTSS From an advisory covering 139 CVEs |
before 153.2.0-118.5.4 | 153.2.0-118.5.4 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise Server 12 SP5-LTSS From an advisory covering 139 CVEs |
before 153-41.3.8 | 153-41.3.8 |
mozilla-nsprSUSE:Linux Enterprise Server 12 SP5-LTSS From an advisory covering 139 CVEs |
before 4.39-19.39.1 | 4.39-19.39.1 |
mozilla-nssSUSE:Linux Enterprise Server 12 SP5-LTSS From an advisory covering 139 CVEs |
before 3.125-58.147.1 | 3.125-58.147.1 |
MozillaFirefoxSUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 From an advisory covering 139 CVEs |
before 153.2.0-118.5.4 | 153.2.0-118.5.4 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 From an advisory covering 139 CVEs |
before 153-41.3.8 | 153-41.3.8 |
mozilla-nsprSUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 From an advisory covering 139 CVEs |
before 4.39-19.39.1 | 4.39-19.39.1 |
mozilla-nssSUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 From an advisory covering 139 CVEs |
before 3.125-58.147.1 | 3.125-58.147.1 |
mozilla-nsprSUSE:Linux Enterprise Micro 5.3 From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise Micro 5.3 From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
mozilla-nsprSUSE:Linux Enterprise Micro 5.4 From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise Micro 5.4 From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
mozilla-nsprSUSE:Linux Enterprise Micro 5.5 From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise Micro 5.5 From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
mozilla-nsprSUSE:Linux Enterprise Module for Basesystem 15 SP7 From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise Module for Basesystem 15 SP7 From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
MozillaFirefoxSUSE:Linux Enterprise Module for Desktop Applications 15 SP7 From an advisory covering 139 CVEs |
before 153.2.0-150400.157.5.1 | 153.2.0-150400.157.5.1 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise Module for Desktop Applications 15 SP7 From an advisory covering 139 CVEs |
before 153-150400.14.3.1 | 153-150400.14.3.1 |
MozillaFirefoxSUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS From an advisory covering 139 CVEs |
before 153.2.0-150400.157.5.1 | 153.2.0-150400.157.5.1 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS From an advisory covering 139 CVEs |
before 153-150400.14.3.1 | 153-150400.14.3.1 |
mozilla-nsprSUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
MozillaFirefoxSUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS From an advisory covering 139 CVEs |
before 153.2.0-150400.157.5.1 | 153.2.0-150400.157.5.1 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS From an advisory covering 139 CVEs |
before 153-150400.14.3.1 | 153-150400.14.3.1 |
mozilla-nsprSUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
MozillaFirefoxSUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS From an advisory covering 139 CVEs |
before 153.2.0-150400.157.5.1 | 153.2.0-150400.157.5.1 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS From an advisory covering 139 CVEs |
before 153-150400.14.3.1 | 153-150400.14.3.1 |
mozilla-nsprSUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
MozillaFirefoxSUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS From an advisory covering 139 CVEs |
before 153.2.0-150400.157.5.1 | 153.2.0-150400.157.5.1 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS From an advisory covering 139 CVEs |
before 153-150400.14.3.1 | 153-150400.14.3.1 |
mozilla-nsprSUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
MozillaFirefoxSUSE:Linux Enterprise Server 15 SP4-LTSS From an advisory covering 139 CVEs |
before 153.2.0-150400.157.5.1 | 153.2.0-150400.157.5.1 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise Server 15 SP4-LTSS From an advisory covering 139 CVEs |
before 153-150400.14.3.1 | 153-150400.14.3.1 |
mozilla-nsprSUSE:Linux Enterprise Server 15 SP4-LTSS From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise Server 15 SP4-LTSS From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
MozillaFirefoxSUSE:Linux Enterprise Server 15 SP5-LTSS From an advisory covering 139 CVEs |
before 153.2.0-150400.157.5.1 | 153.2.0-150400.157.5.1 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise Server 15 SP5-LTSS From an advisory covering 139 CVEs |
before 153-150400.14.3.1 | 153-150400.14.3.1 |
mozilla-nsprSUSE:Linux Enterprise Server 15 SP5-LTSS From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise Server 15 SP5-LTSS From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
MozillaFirefoxSUSE:Linux Enterprise Server 15 SP6-LTSS From an advisory covering 139 CVEs |
before 153.2.0-150400.157.5.1 | 153.2.0-150400.157.5.1 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise Server 15 SP6-LTSS From an advisory covering 139 CVEs |
before 153-150400.14.3.1 | 153-150400.14.3.1 |
mozilla-nsprSUSE:Linux Enterprise Server 15 SP6-LTSS From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise Server 15 SP6-LTSS From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
MozillaFirefoxSUSE:Linux Enterprise Server for SAP Applications 15 SP4 From an advisory covering 139 CVEs |
before 153.2.0-150400.157.5.1 | 153.2.0-150400.157.5.1 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise Server for SAP Applications 15 SP4 From an advisory covering 139 CVEs |
before 153-150400.14.3.1 | 153-150400.14.3.1 |
mozilla-nsprSUSE:Linux Enterprise Server for SAP Applications 15 SP4 From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise Server for SAP Applications 15 SP4 From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
MozillaFirefoxSUSE:Linux Enterprise Server for SAP Applications 15 SP5 From an advisory covering 139 CVEs |
before 153.2.0-150400.157.5.1 | 153.2.0-150400.157.5.1 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise Server for SAP Applications 15 SP5 From an advisory covering 139 CVEs |
before 153-150400.14.3.1 | 153-150400.14.3.1 |
mozilla-nsprSUSE:Linux Enterprise Server for SAP Applications 15 SP5 From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise Server for SAP Applications 15 SP5 From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
MozillaFirefoxSUSE:Linux Enterprise Server for SAP Applications 15 SP6 From an advisory covering 139 CVEs |
before 153.2.0-150400.157.5.1 | 153.2.0-150400.157.5.1 |
MozillaFirefox-branding-SLESUSE:Linux Enterprise Server for SAP Applications 15 SP6 From an advisory covering 139 CVEs |
before 153-150400.14.3.1 | 153-150400.14.3.1 |
mozilla-nsprSUSE:Linux Enterprise Server for SAP Applications 15 SP6 From an advisory covering 139 CVEs |
before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
mozilla-nssSUSE:Linux Enterprise Server for SAP Applications 15 SP6 From an advisory covering 139 CVEs |
before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
MozillaThunderbirdSUSE:Linux Enterprise Module for Package Hub 15 SP7 From an advisory covering 143 CVEs |
before 153.2.0-150400.13.3.1 | 153.2.0-150400.13.3.1 |
MozillaThunderbirdSUSE:Linux Enterprise Workstation Extension 15 SP7 From an advisory covering 143 CVEs |
before 153.2.0-150400.13.3.1 | 153.2.0-150400.13.3.1 |
mozjs52Ubuntu:18.04:LTS |
All versions, plus listed versions 52.3.1-0ubuntu352.3.1-7fakesync152.8.1-0ubuntu0.18.04.152.9.1-0ubuntu0.18.04.1 |
None known |
mozjs38Ubuntu:18.04:LTS |
All versions, plus listed versions 38.8.0~repack1-0ubuntu138.8.0~repack1-0ubuntu338.8.0~repack1-0ubuntu4 |
None known |
mozjs68Ubuntu:20.04:LTS |
All versions, plus listed versions 68.5.0-1~fakesync68.5.0-2~fakesync68.6.0-168.6.0-1ubuntu1 |
None known |
mozjs52Ubuntu:20.04:LTS |
All versions, plus listed versions 52.9.1-1build152.9.1-1ubuntu3 |
None known |
mozjs102Ubuntu:22.04:LTS |
All versions, plus listed versions 102.11.0-0ubuntu0.22.04.1102.12.0-0ubuntu0.22.04.1102.13.0-0ubuntu0.22.04.1102.15.1-0ubuntu0.22.04.1 |
None known |
mozjs78Ubuntu:22.04:LTS |
All versions, plus listed versions 78.13.0-178.15.0-278.15.0-4ubuntu1 |
None known |
mozjs91Ubuntu:22.04:LTS |
All versions, plus listed versions 91.5.1-0ubuntu191.6.0-191.6.0-291.7.0-291.10.0-0ubuntu1 |
None known |
thunderbirdUbuntu:22.04:LTS |
All versions, plus listed versions 1:91.1.2+build1-0ubuntu11:91.3.0+build2-0ubuntu11:91.3.1+build1-0ubuntu11:91.3.2+build1-0ubuntu11:91.4.0+build1.1-0ubuntu1 Show 34 moreShow less1:91.4.0+build2-0ubuntu11:91.5.0+build1-0ubuntu11:91.5.1+build1-0ubuntu11:91.6.1+build1-0ubuntu11:91.7.0+build1-0ubuntu11:91.7.0+build2-0ubuntu11:91.8.0+build2-0ubuntu11:91.9.1+build1-0ubuntu0.22.04.11:91.11.0+build2-0ubuntu0.22.04.11:102.2.2+build1-0ubuntu0.22.04.11:102.4.2+build2-0ubuntu0.22.04.11:102.7.1+build2-0ubuntu0.22.04.11:102.8.0+build2-0ubuntu0.22.04.11:102.9.0+build1-0ubuntu0.22.04.11:102.10.0+build2-0ubuntu0.22.04.11:102.11.0+build1-0ubuntu0.22.04.11:102.13.0+build1-0ubuntu0.22.04.11:102.15.0+build1-0ubuntu0.22.04.11:102.15.1+build1-0ubuntu0.22.04.11:115.3.1+build1-0ubuntu0.22.04.21:115.4.1+build1-0ubuntu0.22.04.11:115.5.0+build1-0ubuntu0.22.04.11:115.6.0+build2-0ubuntu0.22.04.11:115.8.1+build1-0ubuntu0.22.04.11:115.9.0+build1-0ubuntu0.22.04.11:115.10.1+build1-0ubuntu0.22.04.11:115.11.0+build2-0ubuntu0.22.04.11:115.12.0+build3-0ubuntu0.22.04.11:115.13.0+build5-0ubuntu0.22.04.11:115.15.0+build1-0ubuntu0.22.04.11:115.16.0+build2-0ubuntu0.22.04.11:115.18.0+build1-0ubuntu0.22.04.11:128.12.0+build1-0ubuntu0.22.04.11:140.7.1+build1-0ubuntu0.22.04.1 |
None known |
mozjs102Ubuntu:24.04:LTS |
All versions, plus listed versions 102.15.1-1102.15.1-3ubuntu2 |
None known |
mozjs115Ubuntu:24.04:LTS |
All versions, plus listed versions 115.3.0-0ubuntu1115.4.0-2115.5.0-1115.6.0-1115.7.0-4 Show 4 moreShow less115.8.0-1115.9.0-1115.9.0-1build1115.10.0-1 |
None known |
firefox-esropenSUSE:Tumbleweed From an advisory covering 24 CVEs |
before 153.2.0-1.1 | 153.2.0-1.1 |
MozillaFirefoxopenSUSE:Tumbleweed From an advisory covering 29 CVEs |
before 155.0-1.1 | 155.0-1.1 |
MozillaThunderbirdopenSUSE:Tumbleweed From an advisory covering 138 CVEs |
before 153.4.0-1.1 | 153.4.0-1.1 |
MozillaFirefoxopenSUSE:Leap 16.0 From an advisory covering 24 CVEs |
before 153.2.0-160000.1.1 | 153.2.0-160000.1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-84144 is a high vulnerability (CVSS 7.5) in Mozilla Firefox, published September 1, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. No source names a fixed version.
References
bugzilla.mozilla.org/buglist.cgi?bug_id=2054619%2C2054620%2C2054624%2C2054702%2C2054726%2C2054775%2C2055703%2C2058006%2C2058013%2C2058098%2C2058627%2C2058661%2C2059127%2C2059128%2C2059180%2C2059199%2C2059205%2C2061320%2C2061430%2C2061495%2C2061505%2C2061532%2C2061799
bugzilla.mozilla.org/buglist.cgi?bug_id=2054625%2C2059002%2C2061775
bugzilla.mozilla.org/buglist.cgi?bug_id=2054691%2C2058085%2C2059144%2C2059191%2C2059192%2C2061521%2C2062395%2C2062404
mozilla.org/security/advisories/mfsa2026-82
mozilla.org/security/advisories/mfsa2026-85
mozilla.org/security/advisories/mfsa2026-86
Show 194 moreShow less
mozilla.org/security/advisories/mfsa2026-88
nvd.nist.gov/vuln/detail/CVE-2026-84144
github.com/advisories/GHSA-458m-m9vv-frq3
advisories.mageia.org/MGASA-2026-0387.html
bugs.mageia.org/show_bug.cgi?id=36235
firefox-source-docs.mozilla.org/security/nss/releases/nss_3_128.html
firefox.com/en-US/firefox/140.15.0/releasenotes
firefox.com/en-US/firefox/153.2.0/releasenotes
mozilla.org/en-US/security/advisories/mfsa2026-84
mozilla.org/en-US/security/advisories/mfsa2026-85
advisories.mageia.org/MGASA-2026-0388.html
bugs.mageia.org/show_bug.cgi?id=36245
thunderbird.net/en-US/thunderbird/140.14.1esr/releasenotes
thunderbird.net/en-US/thunderbird/153.1.1esr/releasenotes
thunderbird.net/en-US/thunderbird/140.15.0esr/releasenotes
thunderbird.net/en-US/thunderbird/153.2.0esr/releasenotes
mozilla.org/en-US/security/advisories/mfsa2026-87
mozilla.org/en-US/security/advisories/mfsa2026-88
suse.com/support/update/announcement/2026/suse-su-202623784-1
bugzilla.suse.com/1278001
suse.com/security/cve/CVE-2026-74952
suse.com/security/cve/CVE-2026-75874
suse.com/security/cve/CVE-2026-84118
suse.com/security/cve/CVE-2026-84119
suse.com/security/cve/CVE-2026-84120
suse.com/security/cve/CVE-2026-84121
suse.com/security/cve/CVE-2026-84122
suse.com/security/cve/CVE-2026-84123
suse.com/security/cve/CVE-2026-84124
suse.com/security/cve/CVE-2026-84125
suse.com/security/cve/CVE-2026-84129
suse.com/security/cve/CVE-2026-84130
suse.com/security/cve/CVE-2026-84131
suse.com/security/cve/CVE-2026-84132
suse.com/security/cve/CVE-2026-84133
suse.com/security/cve/CVE-2026-84134
suse.com/security/cve/CVE-2026-84136
suse.com/security/cve/CVE-2026-84137
suse.com/security/cve/CVE-2026-84139
suse.com/security/cve/CVE-2026-84140
suse.com/security/cve/CVE-2026-84141
suse.com/security/cve/CVE-2026-84143
suse.com/security/cve/CVE-2026-84144
suse.com/security/cve/CVE-2026-84145
suse.com/support/update/announcement/2026/suse-su-20264140-1
bugzilla.suse.com/1262698
bugzilla.suse.com/1262701
bugzilla.suse.com/1266262
bugzilla.suse.com/1266263
bugzilla.suse.com/1271649
bugzilla.suse.com/1272772
bugzilla.suse.com/1272773
bugzilla.suse.com/1272774
bugzilla.suse.com/1274867
bugzilla.suse.com/1279863
suse.com/security/cve/CVE-2026-16349
suse.com/security/cve/CVE-2026-16350
suse.com/security/cve/CVE-2026-16351
suse.com/security/cve/CVE-2026-16352
suse.com/security/cve/CVE-2026-16353
suse.com/security/cve/CVE-2026-16354
suse.com/security/cve/CVE-2026-16355
suse.com/security/cve/CVE-2026-16356
suse.com/security/cve/CVE-2026-16357
suse.com/security/cve/CVE-2026-16358
suse.com/security/cve/CVE-2026-16359
suse.com/security/cve/CVE-2026-16360
suse.com/security/cve/CVE-2026-16362
suse.com/security/cve/CVE-2026-16363
suse.com/security/cve/CVE-2026-16364
suse.com/security/cve/CVE-2026-16365
suse.com/security/cve/CVE-2026-16366
suse.com/security/cve/CVE-2026-16367
suse.com/security/cve/CVE-2026-16368
suse.com/security/cve/CVE-2026-16369
suse.com/security/cve/CVE-2026-16370
suse.com/security/cve/CVE-2026-16371
suse.com/security/cve/CVE-2026-16372
suse.com/security/cve/CVE-2026-16373
suse.com/security/cve/CVE-2026-16374
suse.com/security/cve/CVE-2026-16375
suse.com/security/cve/CVE-2026-16376
suse.com/security/cve/CVE-2026-16377
suse.com/security/cve/CVE-2026-16378
suse.com/security/cve/CVE-2026-16379
suse.com/security/cve/CVE-2026-16380
suse.com/security/cve/CVE-2026-16381
suse.com/security/cve/CVE-2026-16382
suse.com/security/cve/CVE-2026-16383
suse.com/security/cve/CVE-2026-16384
suse.com/security/cve/CVE-2026-16385
suse.com/security/cve/CVE-2026-16386
suse.com/security/cve/CVE-2026-16387
suse.com/security/cve/CVE-2026-16388
suse.com/security/cve/CVE-2026-16389
suse.com/security/cve/CVE-2026-16390
suse.com/security/cve/CVE-2026-16391
suse.com/security/cve/CVE-2026-16392
suse.com/security/cve/CVE-2026-16393
suse.com/security/cve/CVE-2026-16394
suse.com/security/cve/CVE-2026-16395
suse.com/security/cve/CVE-2026-16396
suse.com/security/cve/CVE-2026-16397
suse.com/security/cve/CVE-2026-16398
suse.com/security/cve/CVE-2026-16399
suse.com/security/cve/CVE-2026-16400
suse.com/security/cve/CVE-2026-16401
suse.com/security/cve/CVE-2026-16402
suse.com/security/cve/CVE-2026-16403
suse.com/security/cve/CVE-2026-16404
suse.com/security/cve/CVE-2026-16405
suse.com/security/cve/CVE-2026-16406
suse.com/security/cve/CVE-2026-16407
suse.com/security/cve/CVE-2026-16408
suse.com/security/cve/CVE-2026-16409
suse.com/security/cve/CVE-2026-16410
suse.com/security/cve/CVE-2026-16411
suse.com/security/cve/CVE-2026-16412
suse.com/security/cve/CVE-2026-74934
suse.com/security/cve/CVE-2026-74935
suse.com/security/cve/CVE-2026-74936
suse.com/security/cve/CVE-2026-74937
suse.com/security/cve/CVE-2026-74938
suse.com/security/cve/CVE-2026-74939
suse.com/security/cve/CVE-2026-74940
suse.com/security/cve/CVE-2026-74941
suse.com/security/cve/CVE-2026-74942
suse.com/security/cve/CVE-2026-74943
suse.com/security/cve/CVE-2026-74944
suse.com/security/cve/CVE-2026-74945
suse.com/security/cve/CVE-2026-74946
suse.com/security/cve/CVE-2026-74947
suse.com/security/cve/CVE-2026-74948
suse.com/security/cve/CVE-2026-74949
suse.com/security/cve/CVE-2026-74950
suse.com/security/cve/CVE-2026-74953
suse.com/security/cve/CVE-2026-74954
suse.com/security/cve/CVE-2026-74955
suse.com/security/cve/CVE-2026-74956
suse.com/security/cve/CVE-2026-74957
suse.com/security/cve/CVE-2026-74958
suse.com/security/cve/CVE-2026-74959
suse.com/security/cve/CVE-2026-74960
suse.com/security/cve/CVE-2026-74961
suse.com/security/cve/CVE-2026-74962
suse.com/security/cve/CVE-2026-74963
suse.com/security/cve/CVE-2026-74964
suse.com/security/cve/CVE-2026-74965
suse.com/security/cve/CVE-2026-74966
suse.com/security/cve/CVE-2026-74967
suse.com/security/cve/CVE-2026-74968
suse.com/security/cve/CVE-2026-74969
suse.com/security/cve/CVE-2026-74970
suse.com/security/cve/CVE-2026-74971
suse.com/security/cve/CVE-2026-74972
suse.com/security/cve/CVE-2026-74973
suse.com/security/cve/CVE-2026-74974
suse.com/security/cve/CVE-2026-74976
suse.com/security/cve/CVE-2026-74977
suse.com/security/cve/CVE-2026-74978
suse.com/security/cve/CVE-2026-74979
suse.com/security/cve/CVE-2026-74981
suse.com/security/cve/CVE-2026-74982
suse.com/security/cve/CVE-2026-74983
suse.com/security/cve/CVE-2026-74984
suse.com/security/cve/CVE-2026-74985
suse.com/security/cve/CVE-2026-74986
suse.com/security/cve/CVE-2026-74987
suse.com/security/cve/CVE-2026-74988
suse.com/security/cve/CVE-2026-74990
suse.com/support/update/announcement/2026/suse-su-20264156-1
bugzilla.suse.com/1226112
bugzilla.suse.com/1273243
suse.com/support/update/announcement/2026/suse-su-20264268-1
suse.com/security/cve/CVE-2024-34703
suse.com/security/cve/CVE-2026-14899
suse.com/security/cve/CVE-2026-84637
suse.com/security/cve/CVE-2026-84639
suse.com/security/cve/CVE-2026-84640
suse.com/security/cve/CVE-2026-84641
suse.com/security/cve/CVE-2026-84642
ubuntu.com/security/CVE-2026-84144
cve.org/CVERecord?id=CVE-2026-84144
mozilla.org/en-US/security/advisories/mfsa2026-82
suse.com/security/cve/CVE-2026-84117
suse.com/security/cve/CVE-2026-84126
suse.com/security/cve/CVE-2026-84127
suse.com/security/cve/CVE-2026-84128
suse.com/security/cve/CVE-2026-84135
suse.com/security/cve/CVE-2026-84138
suse.com/security/cve/CVE-2026-84142
suse.com/security/cve/CVE-2026-100756
suse.com/security/cve/CVE-2026-100757
suse.com/security/cve/CVE-2026-100758
Left out here: 97 references and the rest of 3 source descriptions. The JSON record has them.