CVE-2026-84640

취약점 유형

A maliciously constructed mail header could lead to a one byte read past the end of a buffer. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.

영향받는 제품

• mozilla thunderbird

참고 자료

• https://bugzilla.mozilla.org/show_bug.cgi?id=2063964
• https://www.mozilla.org/security/advisories/mfsa2026-86/
• https://www.mozilla.org/security/advisories/mfsa2026-87/
• https://www.mozilla.org/security/advisories/mfsa2026-88/