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VulnerabilityPublished

CVE-2026-118009: Mozilla Firefox · Integer overflow, use-after-free in the Graphics: Text component

Affects Mozilla FirefoxSource CVE Database V5

0

Not known to be exploited.

Data as of 27 Oct 2026, 17:24 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 26 Oct 2026.

What to do

AI-suggested

Users and administrators should update Firefox to version 159 or later, where this vulnerability has been fixed. No additional mitigation steps are required beyond applying the official update.

Description

CVE-2026-118009 is a vulnerability in Mozilla Firefox's Graphics: Text component involving an integer overflow and use-after-free condition. This flaw was addressed and fixed in Firefox version 159. The vulnerability is considered high impact due to the potential memory safety issues it introduces.

References

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