smb2_lock · ksmbd: fix bug on trap
Affects MicrosoftSource GCVE Database
Not known to be exploited.
Data as of 29 Oct 2026, 23:37 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Exploitation evidence
Disclosed: evidence found.
CVE published 2 Apr 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Security Response Center Microsoft | Affected
| Fixed in– |
Description
This vulnerability, identified as CVE-2025-21944, concerns a bug in the ksmbd component related to the smb2_lock function. The issue involves a trap condition that could affect the proper handling of SMB2 locks. The affected version explicitly stated is version 2.0. No CVSS score or detailed impact information is provided.