CVE-2026-84640 in Thunderbird

الملخص

بحسب MITRE • 02/09/2026

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.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

• مسؤول: Mozilla
• حجز: 01/09/2026
• إفشاء: 02/09/2026
• الاعتدال: تمت الموافقة
• إدخال: VDB-397940
• CPE: جاهز
• CWE: CWE-125 (مؤكد)
• CVSS: 7.3 (VulDB)
• EPSS: 0.00000
• KEV: لا
• النشاطات: منخفض جدًا
• القطاع: Education, Finance, ...

المصادر

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-84640
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-84640
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-84640/