CVE-2025-68246ksmbd: close accepted socket when per-IP limit rejects connection
- 7.5HighCVSS base score
- 0.41%Exploitation in 30 daysEPSS · top 64% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
Published
- 8 months later
· 8 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Deferred | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.41% · top 64% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < 7a3c7154d5fc05956a8ad9e72ecf49e21555bfca
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < 5746b2a0f5eb3d79667b3c51fe849bd62464220e
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < 4587a7826be1ae0190dba10ff70b46bb0e3bc7d3
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < 35521b5a7e8a184548125f4530552101236dcda1
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < 98a5fd31cbf72d46bf18e50b3ab0ce86d5f319a9
- affected 5.15
- unaffected < 5.15
- unaffected 6.1.159 – ≤ 6.1.*
- unaffected 6.6.117 – ≤ 6.6.*
- unaffected 6.12.59 – ≤ 6.12.*
- unaffected 6.17.9 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References5
- https://git.kernel.org/stable/c/7a3c7154d5fc05956a8ad9e72ecf49e21555bfca (opens in a new tab)
- https://git.kernel.org/stable/c/5746b2a0f5eb3d79667b3c51fe849bd62464220e (opens in a new tab)
- https://git.kernel.org/stable/c/4587a7826be1ae0190dba10ff70b46bb0e3bc7d3 (opens in a new tab)
- https://git.kernel.org/stable/c/35521b5a7e8a184548125f4530552101236dcda1 (opens in a new tab)
- https://git.kernel.org/stable/c/98a5fd31cbf72d46bf18e50b3ab0ce86d5f319a9 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-203650 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-68246)Record last updated .