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CVE-2025-21946VulnerabilityPublished Updated

parse_sec_desc() · ksmbd: fix out-of-bounds

Affects MicrosoftSource GCVE Database

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Not known to be exploited.

Data as of 29 Oct 2026, 23:37 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Apr 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
Microsoft Security Response Center MicrosoftAffected
  • =2.0
Fixed in–

Description

An out-of-bounds vulnerability exists in the ksmbd component's parse_sec_desc() function. This flaw is identified as CWE-125, indicating a potential buffer over-read or similar memory access issue. The affected version is 2.0. No CVSS score or detailed impact information is provided.

References

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