Description
Memory safety bug present in Firefox 143 and Thunderbird 143. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144 and Thunderbird < 144.
Problem types
Memory safety bug fixed in Firefox 144 and Thunderbird 144
Product status
References
bugzilla.mozilla.org/show_bug.cgi?id=1986816 (Memory safety bug fixed in Firefox 144 and Thunderbird 144)
www.mozilla.org/security/advisories/mfsa2025-81/
www.mozilla.org/security/advisories/mfsa2025-84/
