Cyber Resilience

CVE-2025-37924

Critical

Published: 20 May 2025

Published
20 May 2025
Modified
02 April 2026
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0027 50.4th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-37924 is a critical-severity Use After Free (CWE-416) vulnerability in Linux Linux Kernel. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 49.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

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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.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

linux
linux kernel
6.15 · 5.15 — 6.1.138 · 6.2 — 6.6.90 · 6.7 — 6.12.28
debian
debian linux
11.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-416

Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.

References