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VulnerabilityPublished

CVE-2026-124933: Sandbox Escape

Source GCVE Database

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Authoritative record:CVE-2026-124933· High

Not known to be exploited.

Data as of 10 Nov 2026, 17:20 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

AI-suggested

Users and administrators should update Firefox to version 160 or later, or Firefox ESR 153.7 or later, where this vulnerability has been fixed. Applying these official updates fully mitigates the risk posed by this sandbox escape flaw.

Description

CVE-2026-124933 is a sandbox escape vulnerability in the Console component of Firefox. This security flaw allows code running within the sandbox to break out of its restricted environment. The issue was addressed and fixed in Firefox 160 and Firefox ESR 153.7.

References

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