CVE-2023-32251

LOW EPSS 33.5%
Published Jul 31, 202511mo ago · Modified Jun 17, 20261w ago
3.7 CVSS 3.1
Low
Find Similar
Published Jul 31, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
3.7
Exploitability
2.2
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
33.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-307

References 4

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.