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CVE-2025-4082

WebGL shader attribute memory corruption in Thunderbird for macOS

5.9 Medium

Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained with other vulnerabilities, could be used to escalate privileges. This bug only affects Thunderbird for macOS. Other versions of Thunderbird are unaffected.. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

0.46%Up 0.4 points since Apr 30, 2025
90%50%10%1%

What each source reports

CVE List Score used 5.9

WebGL shader attribute memory corruption in Thunderbird for macOS

Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained with other vulnerabilities, could be used to escalate privileges. This bug only affects Thunderbird for macOS. Other versions of Thunderbird are unaffected.. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.

Record
CVE-2025-4082
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
EUVDEUVD-2025-12688 5.9

Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained with other vulnerabilities, could be used to escalate privileges. This bug only affects Thunderbird for macOS. Other versions of Thunderbird are unaffected.. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.

Record
EUVD-2025-12688
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-xhhw-j3h4-3x9r 5.9

Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when...

Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained with other vulnerabilities, could be used to escalate privileges. This bug only affects Firefox for macOS. Other versions of Firefox are unaffected. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird ESR < 128.10.

Record
GHSA-xhhw-j3h4-3x9r
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
NVD 5.9

Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained with other vulnerabilities, could be used to escalate privileges. This bug only affects Thunderbird for macOS. Other versions of Thunderbird are unaffected.. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.

Record
CVE-2025-4082
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
OSVOESA-2025-2557 9.8

thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

This vulnerability affects Firefox versions prior to 143 and Firefox ESR versions prior to 140.3. Specific vulnerability type and impact details require further confirmation.(CVE-2025-10527)

This vulnerability affects Firefox < 143 and Firefox ESR < 140.3.(CVE-2025-10528)

This vulnerability affects Firefox versions earlier than 143 and Firefox ESR versions earlier than 140.3. The vulnerability may lead to security bypass or other security issues.(CVE-2025-10529)

This vulnerability affects Firefox < 143 and Firefox ESR < 140.3.(CVE-2025-10532)

This vulnerability affects Firefox < 143, Firefox ESR < 115.28, and Firefox ESR < 140.3. Specific vulnerability details require further analysis.(CVE-2025-10533)

This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.(CVE-2025-10536)

Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 143 and Firefox ESR < 140.3.(CVE-2025-10537)

Use-after-free vulnerability in MediaTrackGraphImpl::GetInstance(). This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11708)

A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11709)

A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11710)

There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11711)

A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11712)

Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11714)

Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird ESR < 140.4.(CVE-2025-11715)

Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained with other vulnerabilities, could be used to escalate privileges. This bug only affects Thunderbird for macOS. Other versions of Thunderbird are unaffected. This vulnerability affects Firefox < 138, Firefox ESR <…

Record
OESA-2025-2557
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2025:15042-1 No score

MozillaThunderbird-128.10.0-1.1 on GA media

These are all security issues fixed in the MozillaThunderbird-128.10.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:15042-1
Updated
2026-11-02
Show 4 moreShow less
OSVopenSUSE-SU-2025:15045-1 No score

MozillaFirefox-138.0-1.1 on GA media

These are all security issues fixed in the MozillaFirefox-138.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:15045-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:11373-1 No score

firefox-esr-153.0-1.1 on GA media

These are all security issues fixed in the firefox-esr-153.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:11373-1
Updated
2026-11-02
OSVSUSE-SU-2025:1436-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues:

  • Firefox Extended Support Release 128.10.0 ESR MFSA 2025-29 (bsc#1241621):
    • CVE-2025-2817: Potential privilege escalation in Firefox Updater
    • CVE-2025-4082: WebGL shader attribute memory corruption in Firefox for macOS
    • CVE-2025-4083: Process isolation bypass using javascript: URI links in cross-origin frames
    • CVE-2025-4084: Potential local code execution in 'copy as cURL' command
    • CVE-2025-4087: Unsafe attribute access during XPath parsing
    • CVE-2025-4091: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10
    • CVE-2025-4093: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10
Record
SUSE-SU-2025:1436-1
Updated
2026-11-02
OSVSUSE-SU-2025:1506-1 No score

Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues:

Mozilla Thunderbird ESR 128.10 update (bsc#1241621):

  • CVE-2025-4082: WebGL shader attribute memory corruption in Thunderbird for macOS.
  • CVE-2025-4087: Unsafe attribute access during XPath parsing.
  • CVE-2025-4093: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird.
  • CVE-2025-4091: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10.
  • CVE-2025-4083: Process isolation bypass using 'javascript:' URI links in cross-origin frames.
  • CVE-2025-4084: Potential local code execution in 'copy as cURL' command.
  • CVE-2025-2817: Privilege escalation in Thunderbird Updater.
Record
SUSE-SU-2025:1506-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
thunderbird
openEuler:24.03-LTS-SP2
From an advisory covering 16 CVEs
 before 140.4.0-1.oe2403sp2
140.4.0-1.oe2403sp2
MozillaFirefox
SUSE:Linux Enterprise Module for Desktop Applications 15 SP6
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP3-LTSS
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP4-LTSS
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP5-LTSS
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
Show 11 moreShow less
Affected packages
PackageAffectedFixed
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP3
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaFirefox
SUSE:Enterprise Storage 7.1
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaFirefox
openSUSE:Leap 15.6
From an advisory covering 7 CVEs
 before 128.10.0-150200.152.179.1
128.10.0-150200.152.179.1
MozillaThunderbird
SUSE:Linux Enterprise Module for Package Hub 15 SP6
From an advisory covering 7 CVEs
 before 128.10.0-150200.8.212.1
128.10.0-150200.8.212.1
MozillaThunderbird
SUSE:Linux Enterprise Workstation Extension 15 SP6
From an advisory covering 7 CVEs
 before 128.10.0-150200.8.212.1
128.10.0-150200.8.212.1
MozillaThunderbird
openSUSE:Leap 15.6
From an advisory covering 7 CVEs
 before 128.10.0-150200.8.212.1
128.10.0-150200.8.212.1
MozillaThunderbird
openSUSE:Tumbleweed
From an advisory covering 7 CVEs
 before 128.10.0-1.1
128.10.0-1.1
MozillaFirefox
openSUSE:Tumbleweed
From an advisory covering 11 CVEs
 before 138.0-1.1
138.0-1.1
firefox-esr
openSUSE:Tumbleweed
From an advisory covering 228 CVEs
 before 153.0-1.1
153.0-1.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2025-4082 is a medium vulnerability (CVSS 5.9) in Mozilla Firefox, published April 29, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 40th percentile. No source names a fixed version.

References

Show 194 moreShow less
This page doesn't list everything

Left out here: 61 references and the rest of 1 source description. The JSON record has them.

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