Microsoft · smb: client: fix busy dentry warning on unmount after DIO
Affects MicrosoftSource GCVE Database
Not known to be exploited.
Data as of 10 Nov 2026, 12:06 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 23 Aug 2026
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 10 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Security Response Center Microsoft | Affected
| Fixed in– |
Description
This vulnerability relates to the SMB client component in Microsoft software, specifically addressing a busy dentry warning that occurs on unmount after Direct I/O (DIO) operations. The issue is identified in version 3.0 of the affected software. No detailed impact or exploitation information is provided.