CVE-2026-12301

Description

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

CVSS Vector

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2015647
• https://www.mozilla.org/security/advisories/mfsa2026-57/
• https://www.mozilla.org/security/advisories/mfsa2026-60/