What is CVE-2026-31718?

CVE-2026-31718 is a security advisory published by Microsoft Security Response Center (MSRC) with Critical severity. ksmbd: fix use-after-free in __ksmbd_close_fd() via durable scavenger

Which CVE IDs does CVE-2026-31718 cover?

CVE-2026-31718 covers the following CVE IDs: CVE-2026-31718. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-31718?

CVE-2026-31718 has a CVSS v3 base score of 9.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-31718?

CVE-2026-31718 affects 1 product, including: azl3 kernel 6.6.137.1-2 on Azure Linux 3.0.

CVE-2026-31718CriticalCVSS 9.8

ksmbd: fix use-after-free in __ksmbd_close_fd() via durable scavenger

Vendor

Microsoft Security Response Center (MSRC)

Published

May 22, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-31718 →

🎯 Affected products1

azl3 kernel 6.6.137.1-2 on Azure Linux 3.0

🔗 References (1)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-31718