Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2025-37924

CVE-2025-37924HIGH

Linux Linux — ksmbd: fix use-after-free in kerberos authentication

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  H  H  H    7.8   .2205   97.6     —

AFFECTED
  Product  Versions                                    Fixed
  Linux    0626e6641f6b467447c81dd7678a69c66f7746cf –  —
  Linux    5.15 –                                      6.1.138

TIMELINE
  Apr 16  Reserved by Linux
  May 20  Published (CNA: Linux)
  Oct 15  RESCORED — CVE-2025-37924 (Linux). CVSS 9.8 → 7.8 (NVD).

CWE-416 · CNA: Linux · CVSS v3.1 · 6 references · NVD status: Modified

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
April 16, 2025	Reserved	Reserved by Linux
May 20, 2025	Published	Published (CNA: Linux)
October 15, 2026	RESCORED	RESCORED — CVE-2025-37924 (Linux). CVSS 9.8 → 7.8 (NVD).

Affected

Affected products and packages — 2 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Linux	Linux	—	0626e6641f6b467447c81dd7678a69c66f7746cf	—
Linux	Linux	—	5.15	6.1.138

Weaknesses

CWE-416

References (6)

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 [Patch]
https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html [Mailing List, Third Party Advisory]

Authoritative record: CVE-2025-37924 at cve.org

Vendors: linux

Weaknesses: CWE-416

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-37924 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.