CVE-2026-74952

Description

Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 154, Thunderbird 154, Firefox ESR 153.2, and Thunderbird 153.2.

References

https://www.mozilla.org/security/advisories/mfsa2026-88/

https://www.mozilla.org/security/advisories/mfsa2026-85/

https://www.mozilla.org/security/advisories/mfsa2026-78/

https://www.mozilla.org/security/advisories/mfsa2026-74/

https://bugzilla.mozilla.org/show_bug.cgi?id=2021757

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

EPSS