CVEs / CVE-2025-37924
CVE-2025-37924: Linux Linux vulnerability
- high 7.8 CVSS 3.1 (NVD)
- EPSS 24.5% chance of exploitation in the next 30 days, higher than 97% of CVEs (1 Nov 2026)
- Last changed at its sources
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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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Linux Linux | from 0626e6641f6b467447c81dd7678a69c66f7746cf, before e34a33d5d7e87399af0a138bb32f6a3e95dd83d2 | e34a33d5d7e87399af0a138bb32f6a3e95dd83d2 |
| Linux Linux | from 0626e6641f6b467447c81dd7678a69c66f7746cf, before b447463562238428503cfba1c913261047772f90 | b447463562238428503cfba1c913261047772f90 |
| Linux Linux | from 0626e6641f6b467447c81dd7678a69c66f7746cf, before e18c616718018dfc440e4a2d2b94e28fe91b1861 | e18c616718018dfc440e4a2d2b94e28fe91b1861 |
| Linux Linux | from 0626e6641f6b467447c81dd7678a69c66f7746cf, before 28c756738af44a404a91b77830d017bb0c525890 | 28c756738af44a404a91b77830d017bb0c525890 |
| Linux Linux | from 0626e6641f6b467447c81dd7678a69c66f7746cf, before e86e9134e1d1c90a960dd57f59ce574d27b9a124 | e86e9134e1d1c90a960dd57f59ce574d27b9a124 |
| Linux Linux | 5.15 | — |
| Product | Affected | Fixed in |
|---|---|---|
| Kernel (Linux) | from 5.15.0, before 6.1.138 | 6.1.138 |
| Kernel (Linux) | from 6.2.0, before 6.6.90 | 6.6.90 |
| Kernel (Linux) | from 6.7.0, before 6.12.28 | 6.12.28 |
| Kernel (Linux) | from 6.13.0, before 6.14.6 | 6.14.6 |
Exploitation
Not in the CISA Known Exploited Vulnerabilities catalog as of 30 Oct 2026.
Severity
| CVSS 3.1 | 7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-416 |
References
- CVE-2025-37924 on NVD
- CVE-2025-37924 on OSV
- 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
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.