CVE-2026-31717: ksmbd: validate owner of durable handle on reconnect

Overview

Severity
High (CVSS 8.8)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploit Status
Not Exploited
Patch Tuesday
2026-May
Released
2026-05-08
Last Updated
2026-05-19
EPSS Score
0.44% (percentile: 34.7%)

Affected Products (3)

Open Source Software

  • azl3 kernel 6.6.138.1-1 on Azure Linux 3.0
  • azl3 kernel 6.6.137.1-2 on Azure Linux 3.0
  • azl3 kernel 6.6.139.1-1 on Azure Linux 3.0

Revision History

  • 2026-05-08: Information published.
  • 2026-05-11: Information published.
  • 2026-05-17: Information published.
  • 2026-05-19: Information published.