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VulnerabilityPublished

CVE-2026-124912: Spoofing Issue

Source GCVE Database

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Authoritative record:CVE-2026-124912· High

Not known to be exploited.

Data as of 10 Nov 2026, 17:51 UTC

Severity
High

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

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 10 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
FirefoxAffected
  • <160
  • <153.7
Fixed in
  • 160
  • 153.7

AI-suggested

Users and administrators should update Firefox to version 160 or later, or Firefox ESR 153.7 or later, where this vulnerability is fixed. Applying the official vendor update fully mitigates the risk. No additional actions are required beyond updating to the fixed versions.

Description

CVE-2026-124912 is a spoofing vulnerability in the DOM security component of Firefox. This issue was addressed and fixed in Firefox version 160 and Firefox ESR 153.7. The vulnerability could potentially allow an attacker to spoof content within the DOM, impacting browser security. The vendor has released an official fix to remediate this issue.

References

Community reviews

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