CVE-2025-37924

moderate-risk
Published 2025-05-20

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in kerberos authentication Setting sess->user = NULL was introduced to fix the dangling pointer created by ksmbd_free_user. However, it is possible another thread could be operating on the session and make use of sess->user after it has been passed to ksmbd_free_user but before sess->user is set to NULL.

Do I need to act?

-
0.27% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: e34a33d5d7e87399af0a138bb32f6a3e95dd83d2, b447463562238428503cfba1c913261047772f90, e18c616718018dfc440e4a2d2b94e28fe91b1861, 28c756738af44a404a91b77830d017bb0c525890, e86e9134e1d1c90a960dd57f59ce574d27b9a124
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (6)

Affected Vendors

Debian Linux

References (6)

Patch https://git.kernel.org/stable/c/28c756738af44a404a91b77830d017bb0c525890
Patch https://git.kernel.org/stable/c/b447463562238428503cfba1c913261047772f90
Patch https://git.kernel.org/stable/c/e18c616718018dfc440e4a2d2b94e28fe91b1861
Patch https://git.kernel.org/stable/c/e34a33d5d7e87399af0a138bb32f6a3e95dd83d2
Patch https://git.kernel.org/stable/c/e86e9134e1d1c90a960dd57f59ce574d27b9a124
Mailing List https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
46
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 1/34 · Minimal
Exposure 13/34 · Low