What is CVE-2026-59850?

CVE-2026-59850 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. Libssh: libssh: use-after-free via data callbacks on closed channels

Which CVE IDs does CVE-2026-59850 cover?

CVE-2026-59850 covers the following CVE IDs: CVE-2026-59850. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-59850?

CVE-2026-59850 has a CVSS v3 base score of 4.3, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-59850?

CVE-2026-59850 affects 2 products, including: azl3 libssh 0.10.6-8 on Azure Linux 3.0; azl3 libssh 0.10.6-9 on Azure Linux 3.0.

CVE-2026-59850MediumCVSS 4.3

Libssh: libssh: use-after-free via data callbacks on closed channels

Vendor

Microsoft Security Response Center (MSRC)

Published

July 27, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-59850 →

🎯 Affected products2

azl3 libssh 0.10.6-8 on Azure Linux 3.0
azl3 libssh 0.10.6-9 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 0.10.6-9

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59850
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade