CVE-2026-84640 | Mozilla Thunderbird up to 140.14/153.1/154 out-of-bounds

SecurityVulns
Yanac

A vulnerability has been found in Mozilla Thunderbird up to 140.14/153.1/154 and classified as critical. This vulnerability affects unknown code. This manipulation causes out-of-bounds read.

The identification of this vulnerability is CVE-2026-84640. It is possible to initiate the attack remotely. There is no exploit available.

The affected component should be upgraded.VulDB Recent EntriesRead More