HIGH 7.5 Microsoft
CVE-2026-66034
libssh2 Heap Out-of-Bounds Read via publickey subsystem
Microsoft Security Update 2026-Jul: libssh2 Heap Out-of-Bounds Read via publickey subsystem
Affected Products
- azl3 libssh2 1.11.1-4 on Azure Linux 3.0
- azl3 rust 1.75.0-30 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66034
- https://nvd.nist.gov/vuln/detail/CVE-2026-66034
This high severity vulnerability with a CVSS score of 7.5 was published on 2026-07-14 via Microsoft. Affected: azl3 libssh2 1.11.1-4 on Azure Linux 3.0, azl3 rust 1.75.0-30 on Azure Linux 3.0.
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