CVE-2026-84639 | Mozilla Thunderbird up to 140.14/153.1/154 uninitialized pointer

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A vulnerability, which was classified as critical, was found in Mozilla Thunderbird up to 140.14/153.1/154. This affects an unknown part. The manipulation results in uninitialized pointer.

This vulnerability was named CVE-2026-84639. The attack may be performed from remote. There is no available exploit.

You should upgrade the affected component.VulDB Recent EntriesRead More