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.

CVSS v3 3.7 LOW

3.7^/10

CVSS v3 : LOW

Vector :

Exploitability : 2.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2023-32251
https://bugzilla.redhat.com/show_bug.cgi?id=2385852
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b096d97f47326b1e2dbdef1c91fab69ffda54d17
https://www.zerodayinitiative.com/advisories/ZDI-23-699/

Configurations

No configuration.

History

21 Nov 2025, 06:15

Type	Values Removed	Values Added
References		() https://access.redhat.com/security/cve/CVE-2023-32251 - () https://bugzilla.redhat.com/show_bug.cgi?id=2385852 -

Information

Published : 2025-07-31 21:15

Updated : 2025-11-21 06:15

NVD link : CVE-2023-32251

Mitre link : CVE-2023-32251

CVE.ORG link : CVE-2023-32251

JSON object : View

Products Affected

No product.

CWE

CWE-307

Improper Restriction of Excessive Authentication Attempts

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