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May 5, 2026
Vulnerabilities may enable arbitrary code execution and sandbox escape via browser use. Attackers could gain user-level control of impacted systems.
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Firefox before 150.0.1 and Firefox ESR before 140.10.1 and 115.35.1 are affected. Any endpoint using these versions may be exposed.
If exploited, attackers could view, change, or delete data and install programs. They could also create new accounts with the user’s level of rights.
Flaws include incorrect boundary conditions in Audio/Video and WebRTC networking, plus multiple memory safety bugs in affected releases.
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