CVE-2025-8040 Information

Description

Memory safety bugs present in Firefox ESR 140.0 Thunderbird ESR 140.0 Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 141 Firefox ESR < 140.1 Thunderbird < 141 and Thunderbird < 140.1.

Reference

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1975058%2C1975058%2C1975998%2C1975998 https://www.mozilla.org/security/advisories/mfsa2025-56/ https://www.mozilla.org/security/advisories/mfsa2025-59/ https://www.mozilla.org/security/advisories/mfsa2025-61/ https://www.mozilla.org/security/advisories/mfsa2025-63/

Related CNNVD

CNNVD-202507-2936 (Published: 2025-07-22)