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CVE-2025-38437ksmbd: fix potential use-after-free in oplock/lease break ack
- 8.8HighCVSS base score
- 0.45%Exploitation in 30 daysEPSS · top 61% 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: fix potential use-after-free in oplock/lease break ack If ksmbd_iov_pin_rsp return error, use-after-free can happen by accessing opinfo->state and opinfo_put and ksmbd_fd_put could called twice.
Timeline
ID reserved
By Linux
- 3 months later
· 3 months later
Published
- 13 months later
· 13 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 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.45% · top 61% of all CVEs (15 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < e38ec88a2b42c494601b1213816d75f0b54d9bf0
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < 97c355989928a5f60b228ef5266c1be67a46cdf9
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < 815f1161d6dbc4c54ccf94b7d3fdeab34b4d7477
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < 8106adc21a2270c16abf69cd74ccd7c79c6e7acd
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < 50f930db22365738d9387c974416f38a06e8057e
- affected 5.15
- unaffected < 5.15
- unaffected 6.1.146 – ≤ 6.1.*
- unaffected 6.6.99 – ≤ 6.6.*
- unaffected 6.12.39 – ≤ 6.12.*
- unaffected 6.15.7 – ≤ 6.15.*
- unaffected 6.16 – ≤ *
References
References6
- https://git.kernel.org/stable/c/e38ec88a2b42c494601b1213816d75f0b54d9bf0 (opens in a new tab)
- https://git.kernel.org/stable/c/97c355989928a5f60b228ef5266c1be67a46cdf9 (opens in a new tab)
- https://git.kernel.org/stable/c/815f1161d6dbc4c54ccf94b7d3fdeab34b4d7477 (opens in a new tab)
- https://git.kernel.org/stable/c/8106adc21a2270c16abf69cd74ccd7c79c6e7acd (opens in a new tab)
- https://git.kernel.org/stable/c/50f930db22365738d9387c974416f38a06e8057e (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html (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-2025-22704 (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-2025-38437)Record last updated .