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CVE-2025-4082

WebGL shader attribute memory corruption in Thunderbird for macOS

Published: Apr 29, 2025Updated: Apr 13, 2026 Sources: CVE List NVD BDUCWE-125
NVD MITRE
5.9CVSSMEDIUM
EPSS Score
0.4%
Top 71.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-125

Affected Products

firefoxmozilla
On-premDesktop App
Consumer Software / browser
thunderbirdmozilla
On-premDesktop App
Communications / email-server-client
FirefoxMozilla
On-premDesktop App
Consumer Software / browser
ThunderbirdMozilla
On-premDesktop App
Communications / email-server-client
openSUSE TumbleweedNovell Inc.
On-premOS
Operating Systems / linux-distro
mozillaoss-projectUSConsumer Softwareaka mozilla corp.
novell inc.commercialUSOperating Systems
and 12 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1937097
bugzilla.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2025-28/
mozilla.org
https://www.mozilla.org/security/advisories/mfsa2025-29/
mozilla.org
and 9 more references View all →

Timeline

Published
Apr 29, 2025
Last Updated
Apr 13, 2026

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