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Vulnerability record · CVE-2023-3867 · published 16 August 2025

CVE-2023-3867: Linux kernel out-of-bounds read vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out of bounds read in smb2_sess_setup ksmbd does not consider the case of that smb2 session setup is in compound request. If this is the second payload of the compound, OOB read issue occurs while processing the first payload in the smb2_sess_setup().

7.1 CVSS 3.1 High EPSS 5.4% · top 7.6% CWE-125 · Out-of-bounds read
7.1CVSS 3.1 base score
5.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
15 Aug 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out of bounds read in smb2_sess_setup ksmbd does not consider the case of that smb2 session setup is in compound request. If this is the second payload of the compound, OOB read issue occurs while processing the first payload in the smb2_sess_setup().

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/2ba03cecb12ac7ac9e0170e251543c56832d9959 Patch
https://git.kernel.org/stable/c/676392184785ace61e939831e7ca44a03d438c3b Patch
https://git.kernel.org/stable/c/98422bdd4cb3ca4d08844046f6507d7ec2c2b8d8 Patch
https://git.kernel.org/stable/c/ef572ffa8eb44111eed2925fbb2adca78bdcbf61 Patch

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Source: NIST National Vulnerability Database (record CVE-2023-3867), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.