LOW 2.9 Microsoft
CVE-2026-57062
CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182.
Microsoft Security Update 2026-Jun: CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182.
Affected Products
- azl3 gnupg2 2.4.9-2 on Azure Linux 3.0
- azl3 gnupg2 2.4.9-3 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57062
- https://nvd.nist.gov/vuln/detail/CVE-2026-57062
This low severity vulnerability with a CVSS score of 2.9 was published on 2026-06-09 via Microsoft. Affected: azl3 gnupg2 2.4.9-2 on Azure Linux 3.0, azl3 gnupg2 2.4.9-3 on Azure Linux 3.0.
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