CVE-2025-9179
Sandbox escape due to invalid pointer in the Audio/Video: GMP component
CVSS Score
9.8
EPSS Score
0.1%
EPSS Percentile
31th
An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.
| Vendor | mozilla |
| Product | firefox |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 19, 2025 |
| Last Updated | Apr 13, 2026 |
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Affected Versions
Mozilla / Firefox
All versions affected Mozilla / Thunderbird
All versions affected References
bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=1979527 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-64/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-65/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-66/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-67/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-70/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-71/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-72/ lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/08/msg00018.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/08/msg00016.html
Credits
Oskar