CVE-2026-103500
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Sep 30, 2026
Vendor
unknown
Description
An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in size. This vulnerability was fixed in Thunderbird 157, Thunderbird 140.17, and Thunderbird 153.4.