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CVE-2022-0566

thunderbird: Crafted email could trigger an out-of-bounds write

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Severity

Moderate

Red Hat Product Security

7.6

CVSS 3.1

Review impact separately from score.

Published · February 17, 2022

Updated · November 21, 2025

Description

A flaw was found in Thunderbird. The vulnerability occurs due to an out-of-bounds write of one byte when processing the message. This flaw allows an attacker to craft an email message that causes Thunderbird to perform an out-of-bounds write.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L

CWE-787 · Out-of-bounds Write