CVE-2025-37924ksmbd: fix use-after-free in kerberos authentication
Updated under an hour ago ()
Does this affect you?
It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 0626e6641f6b467447c81dd7678a69c66f7746cf before e34a33d5d7e87399af0a138bb32f6a3e95dd83d2; from 0626e6641f6b467447c81dd7678a69c66f7746cf before b447463562238428503cfba1c913261047772f90; from 0626e6641f6b467447c81dd7678a69c66f7746cf before e18c616718018dfc440e4a2d2b94e28fe91b1861; 0626e6641f6b467447c81dd7678a69c66f7746cf builds before 28c756738af44a404a91b77830d017bb0c525890; from 0626e6641f6b467447c81dd7678a69c66f7746cf before e86e9134e1d1c90a960dd57f59ce574d27b9a124 | CNA record |
linux linux_kernel linux:linux_kernel | from 5.15 before 6.1.138; from 6.2 before 6.6.90; from 6.7 before 6.12.28; from 6.13 before 6.14.6; 6.15; 6.15; 6.15; 6.15 | NVD |
debian debian_linux debian:debian_linux | 11.0 | NVD |
References
- https://git.kernel.org/stable/c/e34a33d5d7e87399af0a138bb32f6a3e95dd83d2patch
- https://git.kernel.org/stable/c/b447463562238428503cfba1c913261047772f90patch
- https://git.kernel.org/stable/c/e18c616718018dfc440e4a2d2b94e28fe91b1861patch
- https://git.kernel.org/stable/c/28c756738af44a404a91b77830d017bb0c525890patch
- https://git.kernel.org/stable/c/e86e9134e1d1c90a960dd57f59ce574d27b9a124patch
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.htmlmailing-list, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.