CVE-2025-1012

Description

A race during concurrent delazification could have led to a use-after-free. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

References

https://www.mozilla.org/security/advisories/mfsa2025-11/

https://www.mozilla.org/security/advisories/mfsa2025-10/

https://www.mozilla.org/security/advisories/mfsa2025-09/

https://www.mozilla.org/security/advisories/mfsa2025-08/

https://www.mozilla.org/security/advisories/mfsa2025-07/

https://bugzilla.mozilla.org/show_bug.cgi?id=1939710

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3