Vulnerability Description
Privilege escalation due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2054644
- https://www.mozilla.org/security/advisories/mfsa2026-118/
- https://www.mozilla.org/security/advisories/mfsa2026-119/
- https://www.mozilla.org/security/advisories/mfsa2026-120/
- https://www.mozilla.org/security/advisories/mfsa2026-121/
- https://www.mozilla.org/security/advisories/mfsa2026-122/
FAQ
What is CVE-2026-117862?
CVE-2026-117862 is a documented vulnerability. Privilege escalation due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderb...
How severe is CVE-2026-117862?
CVSS scoring is not yet available for CVE-2026-117862. Check NVD for updates.
Is there a patch for CVE-2026-117862?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.