CVE-2025-37924
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 24.5% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 24.5% in the next 30 days (EPSS).
- Severity: 9.8 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 24.5% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Modified
Affected
- Linux Kernel < 6.1.138
- Linux Kernel < 6.6.90
- Linux Kernel < 6.12.28
- Linux Kernel < 6.14.6
- Linux Kernel 6.15
- Debian Linux 11.0
Attack profile CVSS 3.1 · 9.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-37924.md and follow it. Check whether this project is affected by CVE-2025-37924. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- 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
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