Vulnerability · NVD

CVE-2021-43529

CVE-2021-43529, critical severity (CVSS 9.8): 1 tracked app concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 9.8
Exploitation: 0.5 %
Tracked apps: 1
Still exposed: 0

Published on 2023-02-16

Thunderbird versions prior to 91.3.0 are vulnerable to the heap overflow described in CVE-2021-43527 when processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS signatures.

Attack vector : Network No privileges required No user interaction

Show raw CVSS vector

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

EPSS 0.47% exploit very unlikely percentile 38.6%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Mozilla Thunderbird Windows winget:Mozilla.Thunderbird

Affected <91.3.0 Fixed in 91.3.0 Latest tracked 157.0.1 patched

Observed affected builds (23)

91.2.1 91.2.0 91.1.2 91.0.3 78.12.0 78.11.0 78.10.2 78.10.1 78.10.0 78.9.1 78.8.1 78.7.1 78.6.1 78.4.0 78.3.2 78.2.1 78.1.1 78.1.0 78.0.1 78.0 68.10.0 68.9.0 68.8.0

Vulnerable CPE configurations (1)

Vendor	Product	Platform	Versions	CPE 2.3 URI
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	<91.3.0	cpe:2.3:a:mozilla:thunderbird::::::::

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