CVE-2025-1011
HIGH severity · CVSS 8.8 · Code injection
8.8CVSS HIGH
Summary
A bug in WebAssembly code generation could have lead to a crash. It may have been possible for an attacker to leverage this to achieve code execution. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://www.mozilla.org/security/advisories/mfsa2025-07/Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-09/Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-10/Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-11/Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1936454
- https://lists.debian.org/debian-lts-announce/2025/02/msg00005.html
- https://lists.debian.org/debian-lts-announce/2025/02/msg00006.html