CVE-2023-39179

7.5 highEPSS 1.1%

High (7.5) in linux linux kernel. EPSS 1.1% chance of exploitation in the next 30 days.

A flaw was found within the handling of SMB2 read requests in the kernel ksmbd module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this to disclose sensitive information on affected installations of Linux. Only systems with ksmbd enabled are vulnerable to this CVE.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 65% of CVEs (scores of 2026-10-31)
CWE: CWE-125
Published: 2024-11-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

linux:linux_kernel

References

https://access.redhat.com/security/cve/CVE-2023-39179
https://bugzilla.redhat.com/show_bug.cgi?id=2326529
https://www.zerodayinitiative.com/advisories/ZDI-24-586/

Check your stack JSON