CVE-2023-25734
After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker...
8.1 HighFix available
After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.<br>This bug only affects Firefox on Windows. Other operating systems are unaffected.. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
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
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
0.78%Up 0.7 points since Jun 3, 2023
What each source reports
NVD Score used
After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.<br>This bug only affects Firefox on Windows. Other operating systems are unaffected.. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
- Record
CVE-2023-25734- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
CVE List
After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.<br>This bug only affects Firefox on Windows. Other operating systems are unaffected.. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
- Record
CVE-2023-25734- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
EUVDEUVD-2023-29641
After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.<br>This bug only affects Firefox on Windows. Other operating systems are unaffected.. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
- Record
EUVD-2023-29641- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wpvr-v2cc-f6qx
After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker...
After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.<br>This bug only affects Firefox on Windows. Other operating systems are unaffected.. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
- Record
GHSA-wpvr-v2cc-f6qx- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
OSVALPINE-CVE-2023-25734
After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.<br>This bug only affects Firefox on Windows. Other operating systems are unaffected.. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
- Record
ALPINE-CVE-2023-25734- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - Updated
- 2026-11-03
OSVopenSUSE-SU-2024:12702-1No score
libmozjs-102-0-102.8.0-1.1 on GA media
These are all security issues fixed in the libmozjs-102-0-102.8.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:12702-1- Updated
- 2026-11-02
Show 7 moreShow less
OSVopenSUSE-SU-2024:12713-1No score
MozillaThunderbird-102.8.0-1.1 on GA media
These are all security issues fixed in the MozillaThunderbird-102.8.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:12713-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:12753-1No score
MozillaFirefox-110.0.1-1.1 on GA media
These are all security issues fixed in the MozillaFirefox-110.0.1-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:12753-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:14572-1No 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-2023:0461-1No score
Security update for MozillaFirefox
This update for MozillaFirefox fixes the following issues:
Updated to version 102.8.0 ESR (bsc#1208144):
- CVE-2023-25728: Fixed content security policy leak in violation reports using iframes.
- CVE-2023-25730: Fixed screen hijack via browser fullscreen mode.
- CVE-2023-25743: Fixed Fullscreen notification not being shown in Firefox Focus.
- CVE-2023-0767: Fixed arbitrary memory write via PKCS 12 in NSS.
- CVE-2023-25735: Fixed potential use-after-free from compartment mismatch in SpiderMonkey.
- CVE-2023-25737: Fixed invalid downcast in SVGUtils::SetupStrokeGeometry.
- CVE-2023-25738: Fixed printing on Windows which could potentially crash Firefox with some device drivers.
- CVE-2023-25739: Fixed use-after-free in mozilla::dom::ScriptLoadContext::~ScriptLoadContext.
- CVE-2023-25729: Fixed extensions opening external schemes without user knowledge.
- CVE-2023-25732: Fixed out of bounds memory write from EncodeInputStream.
- CVE-2023-25734: Fixed opening local .url files that causes unexpected network loads.
- CVE-2023-25742: Fixed tab crash by Web Crypto ImportKey.
- CVE-2023-25744: Fixed Memory safety bugs.
- CVE-2023-25746: Fixed Memory safety bugs.
- Record
SUSE-SU-2023:0461-1- Updated
- 2026-11-02
OSVSUSE-SU-2023:0466-1No score
Security update for MozillaFirefox
This update for MozillaFirefox fixes the following issues:
Updated to version 102.8.0 ESR (bsc#1208144):
- CVE-2023-25728: Fixed content security policy leak in violation reports using iframes.
- CVE-2023-25730: Fixed screen hijack via browser fullscreen mode.
- CVE-2023-25743: Fixed Fullscreen notification not being shown in Firefox Focus.
- CVE-2023-0767: Fixed arbitrary memory write via PKCS 12 in NSS.
- CVE-2023-25735: Fixed potential use-after-free from compartment mismatch in SpiderMonkey.
- CVE-2023-25737: Fixed invalid downcast in SVGUtils::SetupStrokeGeometry.
- CVE-2023-25738: Fixed printing on Windows which could potentially crash Firefox with some device drivers.
- CVE-2023-25739: Fixed use-after-free in mozilla::dom::ScriptLoadContext::~ScriptLoadContext.
- CVE-2023-25729: Fixed extensions opening external schemes without user knowledge.
- CVE-2023-25732: Fixed out of bounds memory write from EncodeInputStream.
- CVE-2023-25734: Fixed opening local .url files that causes unexpected network loads.
- CVE-2023-25742: Fixed tab crash by Web Crypto ImportKey.
- CVE-2023-25744: Fixed Memory safety bugs.
- CVE-2023-25746: Fixed Memory safety bugs.
- Record
SUSE-SU-2023:0466-1- Updated
- 2026-11-02
OSVSUSE-SU-2023:0469-1No score
Security update for MozillaFirefox
This update for MozillaFirefox fixes the following issues:
Updated to version 102.8.0 ESR (bsc#1208144):
- CVE-2023-25728: Fixed content security policy leak in violation reports using iframes.
- CVE-2023-25730: Fixed screen hijack via browser fullscreen mode.
- CVE-2023-25743: Fixed Fullscreen notification not being shown in Firefox Focus.
- CVE-2023-0767: Fixed arbitrary memory write via PKCS 12 in NSS.
- CVE-2023-25735: Fixed potential use-after-free from compartment mismatch in SpiderMonkey.
- CVE-2023-25737: Fixed invalid downcast in SVGUtils::SetupStrokeGeometry.
- CVE-2023-25738: Fixed printing on Windows which could potentially crash Firefox with some device drivers.
- CVE-2023-25739: Fixed use-after-free in mozilla::dom::ScriptLoadContext::~ScriptLoadContext.
- CVE-2023-25729: Fixed extensions opening external schemes without user knowledge.
- CVE-2023-25732: Fixed out of bounds memory write from EncodeInputStream.
- CVE-2023-25734: Fixed opening local .url files that causes unexpected network loads.
- CVE-2023-25742: Fixed tab crash by Web Crypto ImportKey.
- CVE-2023-25744: Fixed Memory safety bugs.
- CVE-2023-25746: Fixed Memory safety bugs.
- Record
SUSE-SU-2023:0469-1- Updated
- 2026-11-02
OSVSUSE-SU-2023:0599-1No score
Security update for MozillaThunderbird
This update for MozillaThunderbird fixes the following issues:
Updated Mozilla Thunderbird to version 102.8.0 (bsc#1208144):
- CVE-2023-0616: Fixed User Interface lockup via messages combining S/MIME and OpenPGP.
- CVE-2023-25728: Fixed content security policy leak in violation reports using iframes.
- CVE-2023-25730: Fixed screen hijack via browser fullscreen mode.
- CVE-2023-0767: Fixed arbitrary memory write via PKCS 12 in NSS.
- CVE-2023-25735: Fixed potential use-after-free from compartment mismatch in SpiderMonkey.
- CVE-2023-25737: Fixed invalid downcast in SVGUtils::SetupStrokeGeometry.
- CVE-2023-25738: Fixed printing on Windows could potentially crash Thunderbird with some device drivers.
- CVE-2023-25739: Fixed use-after-free in mozilla::dom::ScriptLoadContext::~ScriptLoadContext.
- CVE-2023-25729: Fixed vulnerability where extensions could have opened external schemes without user knowledge.
- CVE-2023-25732: Fixed out of bounds memory write from EncodeInputStream.
- CVE-2023-25734: Fixed issue where opening local .url files could cause unexpected network loads.
- CVE-2023-25742: Fixed tab crashing caused by Web Crypto ImportKey.
- CVE-2023-25746: Fixed memory safety bugs.
- Record
SUSE-SU-2023:0599-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
firefox-esrAlpine:v3.18 | before 102.8.0-r0 | 102.8.0-r0 |
firefox-esrAlpine:v3.19 | before 102.8.0-r0 | 102.8.0-r0 |
firefox-esrAlpine:v3.20 | before 102.8.0-r0 | 102.8.0-r0 |
firefox-esrAlpine:v3.21 | before 102.8.0-r0 | 102.8.0-r0 |
firefox-esrAlpine:v3.22 | before 102.8.0-r0 | 102.8.0-r0 |
firefox-esrAlpine:v3.23 | before 102.8.0-r0 | 102.8.0-r0 |
MozillaFirefoxSUSE:Linux Enterprise Module for Desktop Applications 15 SP4 From an advisory covering 14 CVEs | before 102.8.0-150200.152.78.1 | 102.8.0-150200.152.78.1 |
MozillaFirefoxSUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS From an advisory covering 14 CVEs | before 102.8.0-150200.152.78.1 | 102.8.0-150200.152.78.1 |
MozillaFirefoxSUSE:Linux Enterprise High Performance Computing 15 SP3-ESPOS From an advisory covering 14 CVEs | before 102.8.0-150200.152.78.1 | 102.8.0-150200.152.78.1 |
MozillaFirefoxSUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS From an advisory covering 14 CVEs | before 102.8.0-150200.152.78.1 | 102.8.0-150200.152.78.1 |
Show 26 moreShow less
| Package | Affected | Fixed |
|---|---|---|
MozillaFirefoxSUSE:Linux Enterprise Real Time 15 SP3 From an advisory covering 14 CVEs | before 102.8.0-150200.152.78.1 | 102.8.0-150200.152.78.1 |
MozillaFirefoxSUSE:Linux Enterprise Server 15 SP2-LTSS From an advisory covering 14 CVEs | before 102.8.0-150200.152.78.1 | 102.8.0-150200.152.78.1 |
MozillaFirefoxSUSE:Linux Enterprise Server 15 SP3-LTSS From an advisory covering 14 CVEs | before 102.8.0-150200.152.78.1 | 102.8.0-150200.152.78.1 |
MozillaFirefoxSUSE:Linux Enterprise Server for SAP Applications 15 SP2 From an advisory covering 14 CVEs | before 102.8.0-150200.152.78.1 | 102.8.0-150200.152.78.1 |
MozillaFirefoxSUSE:Linux Enterprise Server for SAP Applications 15 SP3 From an advisory covering 14 CVEs | before 102.8.0-150200.152.78.1 | 102.8.0-150200.152.78.1 |
MozillaFirefoxSUSE:Enterprise Storage 7 From an advisory covering 14 CVEs | before 102.8.0-150200.152.78.1 | 102.8.0-150200.152.78.1 |
MozillaFirefoxSUSE:Enterprise Storage 7.1 From an advisory covering 14 CVEs | before 102.8.0-150200.152.78.1 | 102.8.0-150200.152.78.1 |
MozillaFirefoxopenSUSE:Leap 15.4 From an advisory covering 14 CVEs | before 102.8.0-150200.152.78.1 | 102.8.0-150200.152.78.1 |
MozillaFirefoxSUSE:OpenStack Cloud 9 From an advisory covering 14 CVEs | before 102.8.0-112.150.1 | 102.8.0-112.150.1 |
MozillaFirefoxSUSE:OpenStack Cloud Crowbar 9 From an advisory covering 14 CVEs | before 102.8.0-112.150.1 | 102.8.0-112.150.1 |
MozillaFirefoxSUSE:Linux Enterprise Server for SAP Applications 12 SP4 From an advisory covering 14 CVEs | before 102.8.0-112.150.1 | 102.8.0-112.150.1 |
MozillaFirefoxSUSE:Linux Enterprise Software Development Kit 12 SP5 From an advisory covering 14 CVEs | before 102.8.0-112.150.1 | 102.8.0-112.150.1 |
MozillaFirefoxSUSE:Linux Enterprise Server 12 SP2-BCL From an advisory covering 14 CVEs | before 102.8.0-112.150.1 | 102.8.0-112.150.1 |
MozillaFirefoxSUSE:Linux Enterprise Server 12 SP4-ESPOS From an advisory covering 14 CVEs | before 102.8.0-112.150.1 | 102.8.0-112.150.1 |
MozillaFirefoxSUSE:Linux Enterprise Server 12 SP4-LTSS From an advisory covering 14 CVEs | before 102.8.0-112.150.1 | 102.8.0-112.150.1 |
MozillaFirefoxSUSE:Linux Enterprise Server 12 SP5 From an advisory covering 14 CVEs | before 102.8.0-112.150.1 | 102.8.0-112.150.1 |
MozillaFirefoxSUSE:Linux Enterprise Server for SAP Applications 12 SP5 From an advisory covering 14 CVEs | before 102.8.0-112.150.1 | 102.8.0-112.150.1 |
MozillaFirefoxSUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS From an advisory covering 14 CVEs | before 102.8.0-150000.150.76.1 | 102.8.0-150000.150.76.1 |
MozillaFirefoxSUSE:Linux Enterprise Server 15 SP1-LTSS From an advisory covering 14 CVEs | before 102.8.0-150000.150.76.1 | 102.8.0-150000.150.76.1 |
MozillaFirefoxSUSE:Linux Enterprise Server for SAP Applications 15 SP1 From an advisory covering 14 CVEs | before 102.8.0-150000.150.76.1 | 102.8.0-150000.150.76.1 |
MozillaThunderbirdSUSE:Linux Enterprise Module for Package Hub 15 SP4 From an advisory covering 13 CVEs | before 102.8.0-150200.8.105.2 | 102.8.0-150200.8.105.2 |
MozillaThunderbirdSUSE:Linux Enterprise Workstation Extension 15 SP4 From an advisory covering 13 CVEs | before 102.8.0-150200.8.105.2 | 102.8.0-150200.8.105.2 |
MozillaThunderbirdopenSUSE:Leap 15.4 From an advisory covering 13 CVEs | before 102.8.0-150200.8.105.2 | 102.8.0-150200.8.105.2 |
MozillaThunderbirdopenSUSE:Tumbleweed From an advisory covering 13 CVEs | before 102.8.0-1.1 | 102.8.0-1.1 |
MozillaFirefoxopenSUSE:Tumbleweed From an advisory covering 19 CVEs | before 110.0.1-1.1 | 110.0.1-1.1 |
firefox-esropenSUSE:Tumbleweed From an advisory covering 1860 CVEs | before 128.5.1-1.1 | 128.5.1-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected, aliases, references | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-25734 is a high vulnerability (CVSS 8.1) in Mozilla Firefox, published February 20, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.78%, the 56th percentile. Fixed in firefox-esr 102.8.0-r0.
References
mozilla.org/security/advisories/mfsa2023-06
bugzilla.mozilla.org/show_bug.cgi?id=1809923
Show 194 moreShow less
nvd.nist.gov/vuln/detail/CVE-2023-25734
github.com/advisories/GHSA-wpvr-v2cc-f6qx
security.alpinelinux.org/vuln/CVE-2023-25734
suse.com/support/update/announcement/2023/suse-su-20230461-1
bugzilla.suse.com/1208138
lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/3HI2RC7AJAHY74Q6MK7GNGWU6TITB22V
This page doesn't list everything
Left out here: 1,679 references. The JSON record has them.