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CVE-2026-100801VulnerabilityPublished Updated

SUSE · Security update for MozillaFirefox

Affects SUSESource GCVE Database

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Authoritative record:CVE-2026-100801· High 8.8

Not known to be exploited · CVSS 8.8 High.

Data as of 5 Nov 2026, 00:56 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.18.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Sep 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 5 Nov 2026.

What to do

AI-suggested

Apply the update to Firefox Extended Support Release 153.6.0 ESR as provided by the vendor (SUSE Product Security Team) to remediate these vulnerabilities. This update contains official fixes for all listed issues. No additional mitigation steps are indicated beyond applying this security update.

Description

This security update for Mozilla Firefox Extended Support Release 153.6.0 ESR addresses multiple vulnerabilities including privilege escalations, sandbox escapes, same-origin policy bypasses, use-after-free bugs, incorrect boundary conditions, uninitialized memory disclosures, and JIT miscompilations across various components such as DLL services, DOM, JavaScript engine, graphics, networking, audio/video, and layout. These issues collectively pose significant risks to browser security and stability.

References

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