Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in session logoff The sess->user object can currently be in use by another thread, for example if another connection has sent a session setup request to bind to the session being free'd. The handler for that connection could be in the smb2_sess_setup function which makes use of sess->user.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.15, < 6.12.28 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/02d16046cd11a5c037b28c12ffb818c56dd3ef43Patch
- https://git.kernel.org/stable/c/2fc9feff45d92a92cd5f96487655d5be23fb7e2bPatch
- https://git.kernel.org/stable/c/70ad6455139e26e85f48f95d0e21f351c1909342
- https://git.kernel.org/stable/c/931dc8a3670f71c45c0b1379ea4e92dafbda1aca
- https://git.kernel.org/stable/c/d5ec1d79509b3ee01de02c236f096bc050221b7fPatch
- https://news.ycombinator.com/item?id=44081338ExploitIssue TrackingThird Party Advisory
- https://sean.heelan.io/2025/05/22/how-i-used-o3-to-find-cve-2025-37899-a-remote-ExploitThird Party Advisory
FAQ
What is CVE-2025-37899?
CVE-2025-37899 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in session logoff The sess->user object can currently be in use by another thread, for example if anothe...
How severe is CVE-2025-37899?
CVE-2025-37899 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-37899?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.