Mozilla Foundation Security Advisory 2026-41
Security Vulnerabilities fixed in Firefox ESR 140.10.2
- Announced
- May 7, 2026
- Impact
- high
- Products
- Firefox ESR
- Fixed in
-
- Firefox ESR 140.10.2
#CVE-2026-8090: Use-after-free in the DOM: Networking component
- Reporter
- Kevin Brosnan
- Impact
- high
References
#CVE-2026-8091: Incorrect boundary conditions in the Audio/Video: Playback component
- Reporter
- The Mozilla Fuzzing Team
- Impact
- high
References
#CVE-2026-8094: Other issue in the WebRTC component
- Reporter
- Michael Froman
- Impact
- high
References
#CVE-2026-8092: Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2
- Reporter
- Andrew McCreight, Christian Holler, Lee Salzman, Maurice Dauer, Tom Schuster, Wayne Mery and the Mozilla Fuzzing Team
- Impact
- high
Description
Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. 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.