HIGH 8.1 Microsoft
CVE-2026-55200
libssh2 - Out-of-Bounds Write via Unchecked packet_length in transport.c
Microsoft Security Update 2026-Jun: libssh2 - Out-of-Bounds Write via Unchecked packet_length in transport.c
Affected Products
- azl3 libssh2 1.11.1-3 on Azure Linux 3.0
- azl3 libssh 0.10.6-8 on Azure Linux 3.0
- azl3 libssh2 1.11.1-2 on Azure Linux 3.0
- azl3 nmap 7.95-3 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55200
- https://nvd.nist.gov/vuln/detail/CVE-2026-55200
This high severity vulnerability with a CVSS score of 8.1 was published on 2026-06-09 via Microsoft. Affected: azl3 libssh2 1.11.1-3 on Azure Linux 3.0, azl3 libssh 0.10.6-8 on Azure Linux 3.0, azl3 libssh2 1.11.1-2 on Azure Linux 3.0 and 1 more.
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