CVE-2025-37924
9.8
CRITICAL · CVSS 3.1 · EPSS 21.2% (pctl 98)
Patch early
EPSS 21.2% — above the 10% action threshold.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 21.21% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-416 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2025-05-20 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| debian | debian linux |
| linux | linux kernel |
References
- https://git.kernel.org/stable/c/28c756738af44a404a91b77830d017bb0c525890
- https://git.kernel.org/stable/c/b447463562238428503cfba1c913261047772f90
- https://git.kernel.org/stable/c/e18c616718018dfc440e4a2d2b94e28fe91b1861
- https://git.kernel.org/stable/c/e34a33d5d7e87399af0a138bb32f6a3e95dd83d2
- https://git.kernel.org/stable/c/e86e9134e1d1c90a960dd57f59ce574d27b9a124
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
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