CVE-2026-4722

Privilege escalation in the IPC component

CVSS 8.8 HIGHEPSS 0.3%

Privilege escalation in the IPC component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Mozilla · Firefox Mozilla · Thunderbird

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2010097 https://www.mozilla.org/security/advisories/mfsa2026-20/https://www.mozilla.org/security/advisories/mfsa2026-23/