CVE-2026-14899
Vulnerability Description
The code to parse MIME headers for display when forwarding a message (if the setting to view all headers was enabled) had an off-by-one error, allowing a single byte to be read from the memory after the buffer for the headers, and potentially crashing Thunderbird. This vulnerability was fixed in Thunderbird 153 and Thunderbird 140.13.
Vulnerability Details
Published Date
Last Modified
Source
NVD
Vendor
Mozilla
Product
Thunderbird
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