CVE-2026-124885: Use-after-free in the Graphics · Text component
Source GCVE Database
Not known to be exploited · CVSS 8.8 High.
Data as of 10 Nov 2026, 17:02 UTC
Thin evidence
One scorer or none| CISA-ADP | CVSS 3.1 | 8.8 |
|---|
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation 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 apply the official fixes by upgrading to Firefox 160, Firefox ESR 115.45, or Firefox ESR 153.7. These versions contain patches that fully remediate the vulnerability. No additional mitigation steps are required once the update is applied.
Description
CVE-2026-124885 is a use-after-free vulnerability in the Graphics: Text component of Firefox. This flaw was addressed and fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7. The vulnerability has a high severity rating with a CVSS score of 8.8, indicating it could lead to significant impact if exploited.
References
- nvd.nist.gov/vuln/detail/CVE-2026-124885 (opens in a new tab)
- bugzilla.mozilla.org/show_bug.cgi?id=2082006 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2026-125 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2026-126 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2026-127 (opens in a new tab)