CVE-2026-92054 is a vulnerability in Mozilla Firefox
Published on September 15, 2026
Privilege escalation in the Memory component
Privilege escalation in the Memory component. This vulnerability was fixed in Firefox 156 and Firefox ESR 153.3.
Vulnerability Analysis
CVE-2026-92054 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Buffer Overflow Vulnerability?
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.
CVE-2026-92054 has been classified to as a Buffer Overflow vulnerability or weakness.
Products Associated with CVE-2026-92054
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Affected Versions
Mozilla Firefox:- Version 153.3, <= 153.* is unaffected.
- Version 156, <= * is unaffected.