linux: A vulnerability has been identified in the Linux kernel's ksmbd component (kernel SMB/CIFS server)
CVE-2023-32251 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-32251, released July 31, 2025. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.1.37-1 | DEBIAN-CVE-2023-32251 | Jul 31, 2025 |
| linux · Debian 13.5 (trixie) | 6.3.7-1 | DEBIAN-CVE-2023-32251 | Jul 31, 2025 |
| linux · Debian 14 | 6.3.7-1 | DEBIAN-CVE-2023-32251 | Jul 31, 2025 |
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