Critical severity · published Oct 14, 2025
CVE-2025-11709
A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures
9.8
CVSS
0.4%
EPSS
No
On KEV
Description
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 was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 115.29.0; before 144.0; 116.0 before 140.4.0 · source: NVD
TH
Thunderbird · Mozilla
before 144.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-11709
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-11709
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1989127
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-81/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-82/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-83/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-84/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-85/
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