High 7.5Published Dec 16, 2025

CVE-2025-68246ksmbd: close accepted socket when per-IP limit rejects connection

Updated under an hour ago (Oct 27, 2026, 5:10 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: ksmbd: close accepted socket when per-IP limit rejects connection When the per-IP connection limit is exceeded in ksmbd_kthread_fn(), the code sets ret = -EAGAIN and continues the accept loop without closing the just-accepted socket. That leaks one socket per rejected attempt from a single IP and enables a trivial remote DoS. Release client_sk before continuing. This bug was found with ZeroPath.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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: Deferred
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	0626e6641f6b467447c81dd7678a69c66f7746cf builds before 7a3c7154d5fc05956a8ad9e72ecf49e21555bfca; from 0626e6641f6b467447c81dd7678a69c66f7746cf before 5746b2a0f5eb3d79667b3c51fe849bd62464220e; from 0626e6641f6b467447c81dd7678a69c66f7746cf before 4587a7826be1ae0190dba10ff70b46bb0e3bc7d3; from 0626e6641f6b467447c81dd7678a69c66f7746cf before 35521b5a7e8a184548125f4530552101236dcda1; 0626e6641f6b467447c81dd7678a69c66f7746cf builds before 98a5fd31cbf72d46bf18e50b3ab0ce86d5f319a9	CNA record

References

References

https://git.kernel.org/stable/c/7a3c7154d5fc05956a8ad9e72ecf49e21555bfca
https://git.kernel.org/stable/c/5746b2a0f5eb3d79667b3c51fe849bd62464220e
https://git.kernel.org/stable/c/4587a7826be1ae0190dba10ff70b46bb0e3bc7d3
https://git.kernel.org/stable/c/35521b5a7e8a184548125f4530552101236dcda1
https://git.kernel.org/stable/c/98a5fd31cbf72d46bf18e50b3ab0ce86d5f319a9

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.