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CRITICAL

CVE-2025-37924

CVSS v3

9.8

CRITICAL

EPSS Score

21.2 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2025-05-20
Last Modified
2026-04-02

Frequently asked questions

What is CVE-2025-37924?

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.

Is CVE-2025-37924 actively exploited?

Active exploitation of CVE-2025-37924 has not been confirmed. Its EPSS score was 21.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-37924?

CVE-2025-37924 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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