CVE-2025-68817
Medium
Elevated severity or exploit probability.
CVSS base
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.5%
38.7th percentile
CISA KEV
Not listed
Weakness / dates
CWE-416
Published 2026-01-13 · modified 2026-07-30
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2026-01-13 — Published (NVD)
- 2026-07-30 — Last modified (NVD)
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_tree_connect_put under concurrency Under high concurrency, A tree-connection object (tcon) is freed on a disconnect path while another path still holds a reference and later executes *_put()/write on it.
Affected
References
- https://git.kernel.org/stable/c/063cbbc6f595ea36ad146e1b7d2af820894beb21
- https://git.kernel.org/stable/c/21a3d01fc6db5129f81edb0ab7cb94fd758bcbea
- https://git.kernel.org/stable/c/446beed646b2e426dd53d27358365f8678e1dd01
- https://git.kernel.org/stable/c/b39a1833cc4a2755b02603eec3a71a85e9dff926
- https://git.kernel.org/stable/c/d092de8a26c952379ded8e6b0bda31d89befac1a
- https://git.kernel.org/stable/c/d64977495e44855f2b28d8ce56107c963a7a50e4