CVE-2026-74942

Description

Privilege escalation in the Remote Settings Client component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

References

https://www.mozilla.org/security/advisories/mfsa2026-80/

https://www.mozilla.org/security/advisories/mfsa2026-79/

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

https://www.mozilla.org/security/advisories/mfsa2026-77/

https://www.mozilla.org/security/advisories/mfsa2026-76/

https://www.mozilla.org/security/advisories/mfsa2026-75/

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

https://bugzilla.mozilla.org/show_bug.cgi?id=2056571

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3