CVE-2025-38561

low-risk
Published 2025-08-19

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix Preauh_HashValue race condition If client send multiple session setup requests to ksmbd, Preauh_HashValue race condition could happen. There is no need to free sess->Preauh_HashValue at session setup phase. It can be freed together with session at connection termination phase.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
LOCAL / HIGH complexity

Affected Products (2)

Affected Vendors

Debian Linux

References (8)

Patch https://git.kernel.org/stable/c/44a3059c4c8cc635a1fb2afd692d0730ca1ba4b6
Patch https://git.kernel.org/stable/c/6613887da1d18dd2ecfd6c6148a873c4d903ebdc
Patch https://git.kernel.org/stable/c/7d7c0c5304c88bcbd7a85e9bcd61d27e998ba5fc
Patch https://git.kernel.org/stable/c/b69fd87076daa66f3d186bd421a7b0ee0cb45829
Patch https://git.kernel.org/stable/c/edeecc7871e8fc0878d53ce286c75040a0e38f6c
Patch https://git.kernel.org/stable/c/fbf5c0845ed15122a770bca9be1d9b60b470d3aa
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-25-916/
Third Party Advisory https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
19
/ 100
low-risk
Severity 12/34 · Low
Exploitability 0/34 · Minimal
Exposure 7/34 · Low