CVE-2026-124920: Mozilla Firefox · Uninitialized memory in the Graphics: WebGPU component
Affects Mozilla FirefoxSource CVE Database V5
Not known to be exploited.
Data as of 10 Nov 2026, 13:49 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 10 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
AI-suggested
Users and administrators should update Firefox to version 160 or later to remediate this vulnerability. The fix is officially released and available. No additional mitigation steps are indicated beyond applying the update.
Description
CVE-2026-124920 is a vulnerability involving uninitialized memory in the Graphics: WebGPU component of Mozilla Firefox. This security flaw was addressed and fixed in Firefox version 160. The vulnerability is part of a broader set of high-impact security issues resolved in the same Firefox release.