CVE-2025-37899MediumMicrosoft CVSS 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Microsoft advisory for CVE-2025-37899

Published
May 31, 2026
Last Modified
—

🔗 CVE IDs covered (1)

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-37899. This page also shows what EchelonGraph holds for CVE-2025-37899, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products4

  • azl3 kernel 6.6.104.2-4 on Azure Linux 3.0
  • azl3 kernel 6.6.96.2-1 on Azure Linux 3.0
  • azl3 kernel 6.6.96.2-2 on Azure Linux 3.0
  • cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0

🧭 EchelonGraph on CVE-2025-37899

EchelonGraph score
7.8 HIGH
CISA KEV
Not listed
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in session logoff The sess->user object can currently be in use by another thread, for example if another connection has sent a session setup request to bind to the session being free'd. The handler for that connection could be in the smb2_sess_setup function which makes use of sess->user.

Published by kernel.org, the CVE Numbering Authority that assigned CVE-2025-37899, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (1)