Mozilla Foundation Security Advisory 2026-37
Security Vulnerabilities fixed in Firefox ESR 115.35.1
- Announced
- April 28, 2026
- Impact
- high
- Products
- Firefox ESR
- Fixed in
-
- Firefox ESR 115.35.1
#CVE-2026-7320: Information disclosure due to incorrect boundary conditions in the Audio/Video component
- Reporter
- Xuehao Guo
- Impact
- high
References
#CVE-2026-7322: Memory safety bugs fixed in Firefox ESR 115.35.1, Firefox ESR 140.10.1, Thunderbird ESR 140.10.1, Firefox 150.0.1 and Thunderbird 150.0.1
- Reporter
- C.M.Chang, Christian Holler, Steve Fink and the Mozilla Fuzzing Team
- Impact
- critical
Description
Memory safety bugs present in Firefox ESR 115.35.0, Firefox ESR 140.10.0, Thunderbird ESR 140.10.0, Firefox 150.0.0 and Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.