Critical severity · published Oct 14, 2025
CVE-2025-11708
Use-after-free in MediaTrackGraphImpl::GetInstance()
9.8
CVSS
0.5%
EPSS
No
On KEV
Description
Use-after-free in MediaTrackGraphImpl::GetInstance(). This vulnerability was fixed in Firefox 144, 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)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 140.4.0; before 144.0 · source: NVD
TH
Thunderbird · Mozilla
before 140.4.0; 141.0 before 144.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-11708
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-11708
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1988931
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-81/
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/
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/10/msg00015.html
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