CVE-2026-84640

Publication date 2 September 2026

Last updated 4 September 2026


Ubuntu priority

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

(A maliciously constructed mail header could lead to a one byte read pa ...)

Status

Package Ubuntu Release Status
thunderbird 26.04 LTS resolute
Needs evaluation
24.04 LTS noble
Needs evaluation
22.04 LTS jammy
Needs evaluation

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.5 · High

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N


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