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CVE-2020-12415

When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused...

6.5 MediumFix available

When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory. This vulnerability affects Firefox < 78.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

1.26%Unchanged since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory. This vulnerability affects Firefox < 78.

Record
CVE-2020-12415
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-276
Updated
2026-11-02
CVE List No score

When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory. This vulnerability affects Firefox < 78.

Record
CVE-2020-12415
Updated
2026-11-02
EUVDEUVD-2020-4727 No score

When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory. This vulnerability affects Firefox < 78.

Record
EUVD-2020-4727
Updated
2026-11-03
GitHub AdvisoriesGHSA-xp2p-6mv7-gcrx 6.5

When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused...

When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory. This vulnerability affects Firefox < 78.

Record
GHSA-xp2p-6mv7-gcrx
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness
CWE-276
Updated
2026-11-02
OSVALPINE-CVE-2020-12415 6.5

When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory. This vulnerability affects Firefox < 78.

Record
ALPINE-CVE-2020-12415
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Updated
2026-11-03
OSVUBUNTU-CVE-2020-12415 6.5

When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory. This vulnerability affects Firefox < 78.

Record
UBUNTU-CVE-2020-12415
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Updated
2026-11-02
Show 9 moreShow less
OSVMGASA-2020-0378 No score

Updated Thunderbird packages fix security vulnerabilities

AppCache manifest poisoning due to url encoded character processing (CVE-2020-12415).

Use-after-free in WebRTC VideoBroadcaster (CVE-2020-12416).

Integer overflow in nsJPEGEncoder::emptyOutputBuffer (CVE-2020-12422).

WebRTC permission prompt could have been bypassed by a compromised content process (CVE-2020-12424).

Out of bound read in Date.parse() (CVE-2020-12425).

Memory safety bugs fixed in Thunderbird 78 (CVE-2020-12426).

X-Frame-Options bypass using object or embed tags (CVE-2020-15648).

Memory safety bugs fixed in Thunderbird 78.3 (CVE-2020-15673).

XSS when pasting attacker-controlled data into a contenteditable element (CVE-2020-15676).

Download origin spoofing via redirect (CVE-2020-15677).

When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario (CVE-2020-15678).

Note that Enigmail will no longer let you manage your PGP keys, but instead will only provide a migration tool. Thunderbird will no longer use the system keyring and GnuPG; instead, it will handle PGP keys internally.

To use your existing PGP keys with Thunderbird 78 and above, you must use the migration tool from Enigmail upon the first Thunderbird run. See the migration notes on the Mageia wiki.

Also note that, to protect your keys, you should define a master password in Thunderbird.

Record
MGASA-2020-0378
Updated
2026-11-02
OSVopenSUSE-SU-2020:0983-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox to version 78.0.1 ESR fixes the following issues:

Security issues fixed:

  • CVE-2020-12415: AppCache manifest poisoning due to url encoded character processing (bsc#1173576).
  • CVE-2020-12416: Use-after-free in WebRTC VideoBroadcaster (bsc#1173576).
  • CVE-2020-12417: Memory corruption due to missing sign-extension for ValueTags on ARM64 (bsc#1173576).
  • CVE-2020-12418: Information disclosure due to manipulated URL object (bsc#1173576).
  • CVE-2020-12419: Use-after-free in nsGlobalWindowInner (bsc#1173576).
  • CVE-2020-12420: Use-After-Free when trying to connect to a STUN server (bsc#1173576).
  • CVE-2020-12402: RSA Key Generation vulnerable to side-channel attack (bsc#1173576).
  • CVE-2020-12421: Add-On updates did not respect the same certificate trust rules as software updates (bsc#1173576).
  • CVE-2020-12422: Integer overflow in nsJPEGEncoder::emptyOutputBuffer (bsc#1173576).
  • CVE-2020-12423: DLL Hijacking due to searching %PATH% for a library (bsc#1173576).
  • CVE-2020-12424: WebRTC permission prompt could have been bypassed by a compromised content process (bsc#1173576).
  • CVE-2020-12425: Out of bound read in Date.parse() (bsc#1173576).
  • CVE-2020-12426: Memory safety bugs fixed in Firefox 78 (bsc#1173576).
  • FIPS: MozillaFirefox: allow /proc/sys/crypto/fips_enabled (bsc#1167231).

Non-security issues fixed:

  • Fixed interaction with freetype6 (bsc#1173613).

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2020:0983-1
Updated
2026-11-02
OSVopenSUSE-SU-2020:1017-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox to version 78.0.1 ESR fixes the following issues:

Security issues fixed:

  • CVE-2020-12415: AppCache manifest poisoning due to url encoded character processing (bsc#1173576).
  • CVE-2020-12416: Use-after-free in WebRTC VideoBroadcaster (bsc#1173576).
  • CVE-2020-12417: Memory corruption due to missing sign-extension for ValueTags on ARM64 (bsc#1173576).
  • CVE-2020-12418: Information disclosure due to manipulated URL object (bsc#1173576).
  • CVE-2020-12419: Use-after-free in nsGlobalWindowInner (bsc#1173576).
  • CVE-2020-12420: Use-After-Free when trying to connect to a STUN server (bsc#1173576).
  • CVE-2020-12402: RSA Key Generation vulnerable to side-channel attack (bsc#1173576).
  • CVE-2020-12421: Add-On updates did not respect the same certificate trust rules as software updates (bsc#1173576).
  • CVE-2020-12422: Integer overflow in nsJPEGEncoder::emptyOutputBuffer (bsc#1173576).
  • CVE-2020-12423: DLL Hijacking due to searching %PATH% for a library (bsc#1173576).
  • CVE-2020-12424: WebRTC permission prompt could have been bypassed by a compromised content process (bsc#1173576).
  • CVE-2020-12425: Out of bound read in Date.parse() (bsc#1173576).
  • CVE-2020-12426: Memory safety bugs fixed in Firefox 78 (bsc#1173576).
  • FIPS: MozillaFirefox: allow /proc/sys/crypto/fips_enabled (bsc#1167231).

Non-security issues fixed:

  • Fixed interaction with freetype6 (bsc#1173613).

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2020:1017-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10600-1 No score

MozillaFirefox-92.0-1.2 on GA media

These are all security issues fixed in the MozillaFirefox-92.0-1.2 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10600-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:14572-1 No score

firefox-esr-128.5.1-1.1 on GA media

These are all security issues fixed in the firefox-esr-128.5.1-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:14572-1
Updated
2026-11-02
OSVSUSE-SU-2020:14421-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox to version 78.0.1 ESR fixes the following issues:

Security issues fixed:

  • CVE-2020-12415: AppCache manifest poisoning due to url encoded character processing (bsc#1173576).
  • CVE-2020-12416: Use-after-free in WebRTC VideoBroadcaster (bsc#1173576).
  • CVE-2020-12417: Memory corruption due to missing sign-extension for ValueTags on ARM64 (bsc#1173576).
  • CVE-2020-12418: Information disclosure due to manipulated URL object (bsc#1173576).
  • CVE-2020-12419: Use-after-free in nsGlobalWindowInner (bsc#1173576).
  • CVE-2020-12420: Use-After-Free when trying to connect to a STUN server (bsc#1173576).
  • CVE-2020-12402: RSA Key Generation vulnerable to side-channel attack (bsc#1173576).
  • CVE-2020-12421: Add-On updates did not respect the same certificate trust rules as software updates (bsc#1173576).
  • CVE-2020-12422: Integer overflow in nsJPEGEncoder::emptyOutputBuffer (bsc#1173576).
  • CVE-2020-12423: DLL Hijacking due to searching %PATH% for a library (bsc#1173576).
  • CVE-2020-12424: WebRTC permission prompt could have been bypassed by a compromised content process (bsc#1173576).
  • CVE-2020-12425: Out of bound read in Date.parse() (bsc#1173576).
  • CVE-2020-12426: Memory safety bugs fixed in Firefox 78 (bsc#1173576).
  • FIPS: MozillaFirefox: allow /proc/sys/crypto/fips_enabled (bsc#1167231).

Non-security issues fixed:

  • Fixed interaction with freetype6 (bsc#1173613).
Record
SUSE-SU-2020:14421-1
Updated
2026-11-02
OSVSUSE-SU-2020:1898-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox to version 78.0.1 ESR fixes the following issues:

Security issues fixed:

  • CVE-2020-12415: AppCache manifest poisoning due to url encoded character processing (bsc#1173576).
  • CVE-2020-12416: Use-after-free in WebRTC VideoBroadcaster (bsc#1173576).
  • CVE-2020-12417: Memory corruption due to missing sign-extension for ValueTags on ARM64 (bsc#1173576).
  • CVE-2020-12418: Information disclosure due to manipulated URL object (bsc#1173576).
  • CVE-2020-12419: Use-after-free in nsGlobalWindowInner (bsc#1173576).
  • CVE-2020-12420: Use-After-Free when trying to connect to a STUN server (bsc#1173576).
  • CVE-2020-12402: RSA Key Generation vulnerable to side-channel attack (bsc#1173576).
  • CVE-2020-12421: Add-On updates did not respect the same certificate trust rules as software updates (bsc#1173576).
  • CVE-2020-12422: Integer overflow in nsJPEGEncoder::emptyOutputBuffer (bsc#1173576).
  • CVE-2020-12423: DLL Hijacking due to searching %PATH% for a library (bsc#1173576).
  • CVE-2020-12424: WebRTC permission prompt could have been bypassed by a compromised content process (bsc#1173576).
  • CVE-2020-12425: Out of bound read in Date.parse() (bsc#1173576).
  • CVE-2020-12426: Memory safety bugs fixed in Firefox 78 (bsc#1173576).
  • FIPS: MozillaFirefox: allow /proc/sys/crypto/fips_enabled (bsc#1167231).

Non-security issues fixed:

  • Fixed interaction with freetype6 (bsc#1173613).
Record
SUSE-SU-2020:1898-1
Updated
2026-11-02
OSVSUSE-SU-2020:1899-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox to version 78.0.1 ESR fixes the following issues:

Security issues fixed:

  • CVE-2020-12415: AppCache manifest poisoning due to url encoded character processing (bsc#1173576).
  • CVE-2020-12416: Use-after-free in WebRTC VideoBroadcaster (bsc#1173576).
  • CVE-2020-12417: Memory corruption due to missing sign-extension for ValueTags on ARM64 (bsc#1173576).
  • CVE-2020-12418: Information disclosure due to manipulated URL object (bsc#1173576).
  • CVE-2020-12419: Use-after-free in nsGlobalWindowInner (bsc#1173576).
  • CVE-2020-12420: Use-After-Free when trying to connect to a STUN server (bsc#1173576).
  • CVE-2020-12402: RSA Key Generation vulnerable to side-channel attack (bsc#1173576).
  • CVE-2020-12421: Add-On updates did not respect the same certificate trust rules as software updates (bsc#1173576).
  • CVE-2020-12422: Integer overflow in nsJPEGEncoder::emptyOutputBuffer (bsc#1173576).
  • CVE-2020-12423: DLL Hijacking due to searching %PATH% for a library (bsc#1173576).
  • CVE-2020-12424: WebRTC permission prompt could have been bypassed by a compromised content process (bsc#1173576).
  • CVE-2020-12425: Out of bound read in Date.parse() (bsc#1173576).
  • CVE-2020-12426: Memory safety bugs fixed in Firefox 78 (bsc#1173576).
  • FIPS: MozillaFirefox: allow /proc/sys/crypto/fips_enabled (bsc#1167231).

Non-security issues fixed:

  • Fixed interaction with freetype6 (bsc#1173613).
Record
SUSE-SU-2020:1899-1
Updated
2026-11-02
OSVUSN-4408-1 No score

firefox vulnerabilities

Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass permission prompts, or execute arbitrary code. (CVE-2020-12415, CVE-2020-12416, CVE-2020-12417, CVE-2020-12418, CVE-2020-12419, CVE-2020-12420, CVE-2020-12422, CVE-2020-12424, CVE-2020-12425, CVE-2020-12426)

It was discovered that when performing add-on updates, certificate chains not terminating with built-in roots were silently rejected. This could result in add-ons becoming outdated. (CVE-2020-12421)

Record
USN-4408-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
firefox
Alpine:v3.12
 before 78.0-r0
78.0-r0
firefox
Alpine:v3.13
 before 78.0-r0
78.0-r0
firefox
Alpine:v3.14
 before 78.0-r0
78.0-r0
firefox
Alpine:v3.15
 before 78.0-r0
78.0-r0
firefox
Alpine:v3.16
 before 78.0-r0
78.0-r0
firefox
Alpine:v3.17
 before 78.0-r0
78.0-r0
firefox
Alpine:v3.18
 before 78.0-r0
78.0-r0
firefox
Alpine:v3.19
 before 78.0-r0
78.0-r0
firefox
Alpine:v3.20
 before 78.0-r0
78.0-r0
firefox
Alpine:v3.21
 before 78.0-r0
78.0-r0
Show 62 moreShow less
Affected packages
PackageAffectedFixed
firefox
Alpine:v3.22
 before 78.0-r0
78.0-r0
firefox
Alpine:v3.23
 before 78.0-r0
78.0-r0
librewolf
Alpine:v3.21
 before 78.0-r0
78.0-r0
librewolf
Alpine:v3.22
 before 78.0-r0
78.0-r0
librewolf
Alpine:v3.23
 before 78.0-r0
78.0-r0
librewolf
Alpine:v3.24
 before 78.0-r0
78.0-r0
thunderbird
Mageia:7
 before 78.3.1-3.mga7
78.3.1-3.mga7
thunderbird-l10n
Mageia:7
 before 78.3.1-1.mga7
78.3.1-1.mga7
MozillaFirefox
SUSE:Linux Enterprise Server 11 SP4-LTSS
 before 78.0.1-78.80.2
78.0.1-78.80.2
MozillaFirefox-branding-SLED
SUSE:Linux Enterprise Server 11 SP4-LTSS
 before 78-21.12.1
78-21.12.1
MozillaFirefox
SUSE:Linux Enterprise Module for Desktop Applications 15 SP1
 before 78.0.1-3.94.2
78.0.1-3.94.2
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Module for Desktop Applications 15 SP1
 before 78-4.14.1
78-4.14.1
MozillaFirefox
SUSE:Linux Enterprise Module for Desktop Applications 15 SP2
 before 78.0.1-3.94.2
78.0.1-3.94.2
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Module for Desktop Applications 15 SP2
 before 78-4.14.1
78-4.14.1
MozillaFirefox
SUSE:HPE Helion OpenStack 8
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:HPE Helion OpenStack 8
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:OpenStack Cloud 7
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:OpenStack Cloud 7
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:OpenStack Cloud 8
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:OpenStack Cloud 8
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:OpenStack Cloud 9
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:OpenStack Cloud 9
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:OpenStack Cloud Crowbar 8
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:OpenStack Cloud Crowbar 8
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:OpenStack Cloud Crowbar 9
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:OpenStack Cloud Crowbar 9
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP2
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server for SAP Applications 12 SP2
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP3
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server for SAP Applications 12 SP3
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:Linux Enterprise Software Development Kit 12 SP5
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP2-LTSS
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server 12 SP2-LTSS
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP2-BCL
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server 12 SP2-BCL
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP3-LTSS
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server 12 SP3-LTSS
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP3-BCL
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server 12 SP3-BCL
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP4-LTSS
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server 12 SP4-LTSS
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP5
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server 12 SP5
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
 before 78-35.3.1
78-35.3.1
MozillaFirefox
SUSE:Enterprise Storage 5
 before 78.0.1-112.3.1
78.0.1-112.3.1
MozillaFirefox-branding-SLE
SUSE:Enterprise Storage 5
 before 78-35.3.1
78-35.3.1
firefox
Ubuntu:16.04:LTS
 before 78.0.1+build1-0ubuntu0.16.04.1, plus listed versions
41.0.2+build2-0ubuntu142.0+build2-0ubuntu144.0+build3-0ubuntu244.0.1+build1-0ubuntu144.0.2+build1-0ubuntu1
Show 45 moreShow less
45.0+build2-0ubuntu145.0.1+build1-0ubuntu145.0.2+build1-0ubuntu146.0+build5-0ubuntu0.16.04.246.0.1+build1-0ubuntu0.16.04.247.0+build3-0ubuntu0.16.04.148.0+build2-0ubuntu0.16.04.149.0+build4-0ubuntu0.16.04.149.0.2+build2-0ubuntu0.16.04.250.0+build2-0ubuntu0.16.04.250.0.2+build1-0ubuntu0.16.04.150.1.0+build2-0ubuntu0.16.04.151.0.1+build2-0ubuntu0.16.04.151.0.1+build2-0ubuntu0.16.04.252.0+build2-0ubuntu0.16.04.152.0.1+build2-0ubuntu0.16.04.152.0.2+build1-0ubuntu0.16.04.153.0+build6-0ubuntu0.16.04.153.0.2+build1-0ubuntu0.16.04.253.0.3+build1-0ubuntu0.16.04.254.0+build3-0ubuntu0.16.04.155.0.1+build2-0ubuntu0.16.04.255.0.2+build1-0ubuntu0.16.04.156.0+build6-0ubuntu0.16.04.156.0+build6-0ubuntu0.16.04.257.0+build4-0ubuntu0.16.04.557.0+build4-0ubuntu0.16.04.657.0.1+build2-0ubuntu0.16.04.157.0.3+build1-0ubuntu0.16.04.157.0.4+build1-0ubuntu0.16.04.158.0+build6-0ubuntu0.16.04.158.0.1+build1-0ubuntu0.16.04.158.0.2+build1-0ubuntu0.16.04.159.0+build5-0ubuntu0.16.04.159.0.1+build1-0ubuntu0.16.04.159.0.2+build1-0ubuntu0.16.04.159.0.2+build1-0ubuntu0.16.04.360.0+build2-0ubuntu0.16.04.160.0.1+build2-0ubuntu0.16.04.160.0.2+build1-0ubuntu0.16.04.161.0+build3-0ubuntu0.16.04.261.0.1+build1-0ubuntu0.16.04.162.0+build2-0ubuntu0.16.04.362.0+build2-0ubuntu0.16.04.462.0+build2-0ubuntu0.16.04.5
78.0.1+build1-0ubuntu0.16.04.1
firefox
Ubuntu:18.04:LTS
 before 78.0.1+build1-0ubuntu0.18.04.1, plus listed versions
56.0+build6-0ubuntu157.0.1+build2-0ubuntu159.0.1+build1-0ubuntu159.0.2+build1-0ubuntu160.0+build2-0ubuntu1
Show 43 moreShow less
60.0.1+build2-0ubuntu0.18.04.160.0.2+build1-0ubuntu0.18.04.161.0+build3-0ubuntu0.18.04.161.0.1+build1-0ubuntu0.18.04.162.0+build2-0ubuntu0.18.04.362.0+build2-0ubuntu0.18.04.462.0+build2-0ubuntu0.18.04.562.0.3+build1-0ubuntu0.18.04.163.0+build2-0ubuntu0.18.04.263.0.3+build1-0ubuntu0.18.04.164.0+build3-0ubuntu0.18.04.165.0+build2-0ubuntu0.18.04.165.0.1+build2-0ubuntu0.18.04.166.0+build3-0ubuntu0.18.04.166.0.1+build1-0ubuntu0.18.04.166.0.2+build1-0ubuntu0.18.04.166.0.3+build1-0ubuntu0.18.04.166.0.4+build3-0ubuntu0.18.04.166.0.5+build1-0ubuntu0.18.04.167.0+build2-0ubuntu0.18.04.167.0.1+build1-0ubuntu0.18.04.167.0.2+build2-0ubuntu0.18.04.167.0.3+build1-0ubuntu0.18.04.167.0.4+build1-0ubuntu0.18.04.168.0+build3-0ubuntu0.18.04.168.0.1+build1-0ubuntu0.18.04.168.0.2+build1-0ubuntu0.18.04.169.0+build2-0ubuntu0.18.04.169.0.1+build1-0ubuntu0.18.04.169.0.2+build1-0ubuntu0.18.04.170.0+build2-0ubuntu0.18.04.170.0.1+build1-0ubuntu0.18.04.171.0+build5-0ubuntu0.18.04.172.0.1+build1-0ubuntu0.18.04.172.0.2+build1-0ubuntu0.18.04.173.0+build3-0ubuntu0.18.04.173.0.1+build1-0ubuntu0.18.04.174.0+build3-0ubuntu0.18.04.174.0.1+build1-0ubuntu0.18.04.175.0+build3-0ubuntu0.18.04.176.0+build2-0ubuntu0.18.04.176.0.1+build1-0ubuntu0.18.04.177.0.1+build1-0ubuntu0.18.04.1
78.0.1+build1-0ubuntu0.18.04.1
thunderbird
Ubuntu:18.04:LTS
 before 1:78.8.1+build1-0ubuntu0.18.04.1, plus listed versions
1:52.4.0+build1-0ubuntu21:52.6.0+build1-0ubuntu11:52.7.0+build1-0ubuntu11:52.8.0+build1-0ubuntu0.18.04.11:52.9.1+build3-0ubuntu0.18.04.1
Show 15 moreShow less
1:60.2.1+build1-0ubuntu0.18.04.21:60.4.0+build2-0ubuntu0.18.04.11:60.5.1+build2-0ubuntu0.18.04.11:60.6.1+build2-0ubuntu0.18.04.11:60.7.0+build1-0ubuntu0.18.04.11:60.7.1+build1-0ubuntu0.18.04.11:60.7.2+build2-0ubuntu0.18.04.11:60.8.0+build1-0ubuntu0.18.04.11:60.9.0+build1-0ubuntu0.18.04.11:68.2.1+build1-0ubuntu0.18.04.11:68.2.2+build1-0ubuntu0.18.04.11:68.4.1+build1-0ubuntu0.18.04.11:68.7.0+build1-0ubuntu0.18.04.11:68.8.0+build2-0ubuntu0.18.04.21:68.10.0+build1-0ubuntu0.18.04.1
1:78.8.1+build1-0ubuntu0.18.04.1
mozjs52
Ubuntu: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
mozjs38
Ubuntu:18.04:LTS
 All versions, plus listed versions
38.8.0~repack1-0ubuntu138.8.0~repack1-0ubuntu338.8.0~repack1-0ubuntu4
 None known
firefox
Ubuntu:20.04:LTS
 before 78.0.1+build1-0ubuntu0.20.04.1, plus listed versions
69.0.3+build1-0ubuntu170.0+build2-0ubuntu170.0+build2-0ubuntu270.0.1+build1-0ubuntu271.0+build2-0ubuntu2
Show 15 moreShow less
71.0+build5-0ubuntu172.0.1+build1-0ubuntu172.0.2+build1-0ubuntu173.0+build1-0ubuntu173.0+build2-0ubuntu173.0+build3-0ubuntu173.0.1+build1-0ubuntu174.0+build1-0ubuntu174.0+build2-0ubuntu174.0+build2-0ubuntu274.0+build3-0ubuntu175.0+build3-0ubuntu176.0+build2-0ubuntu0.20.04.176.0.1+build1-0ubuntu0.20.04.177.0.1+build1-0ubuntu0.20.04.1
78.0.1+build1-0ubuntu0.20.04.1
thunderbird
Ubuntu:20.04:LTS
 before 1:78.7.1+build1-0ubuntu0.20.04.1, plus listed versions
1:68.1.2+build1-0ubuntu11:68.1.2+build1-0ubuntu21:68.2.1+build1-0ubuntu11:68.2.2+build1-0ubuntu11:68.3.0+build2-0ubuntu1
Show 9 moreShow less
1:68.3.1+build1-0ubuntu21:68.4.1+build1-0ubuntu11:68.4.2+build2-0ubuntu11:68.5.0+build1-0ubuntu11:68.6.0+build2-0ubuntu11:68.7.0+build1-0ubuntu11:68.7.0+build1-0ubuntu21:68.8.0+build2-0ubuntu0.20.04.21:68.10.0+build1-0ubuntu0.20.04.1
1:78.7.1+build1-0ubuntu0.20.04.1
mozjs68
Ubuntu: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
mozjs52
Ubuntu:20.04:LTS
 All versions, plus listed versions
52.9.1-1build152.9.1-1ubuntu3
 None known
MozillaFirefox
openSUSE:Leap 15.2
 before 78.0.1-lp152.2.5.1
78.0.1-lp152.2.5.1
MozillaFirefox
openSUSE:Leap 15.1
 before 78.0.1-lp151.2.53.1
78.0.1-lp151.2.53.1
MozillaFirefox
openSUSE:Tumbleweed
 before 92.0-1.2
92.0-1.2
firefox-esr
openSUSE:Tumbleweed
 before 128.5.1-1.1
128.5.1-1.1

History

History
RecordedChangedSources
affected, aliases, referencesOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-12415 is a medium vulnerability (CVSS 6.5) in Mozilla Firefox, published July 1, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.26%, the 69th percentile. Fixed in firefox 78.0-r0.

References

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This page doesn't list everything

Left out here: 35 versions and 1,706 references. The JSON record has them.

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