Vulnerability in Red Hat Enterprise Linux 10

CVE-2023-32251

A vulnerability has been identified in the Linux kernel's ksmbd component (kernel SMB/CIFS server). A security control designed to prevent dictionary attacks, which introduces a 5-second delay during session setup, can be bypassed through the use of asynchronous requests. This bypass negates the intended anti-brute-force protection, potentially allowing attackers to conduct dictionary attacks more efficiently against user credentials or other authentication mechanisms.

EPSS: 0.004 (35.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-32251?
CVE-2023-32251 is a low-severity vulnerability in Red Hat Enterprise Linux 10, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 3.7/10. Published 2025-07-31.
How severe is CVE-2023-32251?
Low severity. CVSS v3 base score is 3.7 out of 10.