Skip to main content
CVE-2026-98897VulnerabilityPublished Updated

Microsoft · ksmbd: don't hold ci->m_lock while waiting for a lease break ack

Affects MicrosoftSource GCVE Database

0
Authoritative record:CVE-2026-98897· Medium

Not known to be exploited · fixed in 868c9038ffd4af39766d087f68c8f543a3f66635 : update Microsoft when convenient.

Data as of 28 Oct 2026, 08:57 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in 868c9038ffd4af39766d087f68c8f543a3f66635, 27a9bc968d4ae809a3f5ca2f2b136856ee613cb4, 6.7

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade Linux to 868c9038ffd4af39766d087f68c8f543a3f66635, 27a9bc968d4ae809a3f5ca2f2b136856ee613cb4 or 6.7.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=6.6.35 <6.7
Fixed in
  • 868c9038ffd4af39766d087f68c8f543a3f66635
  • 27a9bc968d4ae809a3f5ca2f2b136856ee613cb4
  • 6.7
LinuxLinuxAffected
  • =6.9
Fixed in–

Description

This vulnerability involves the ksmbd component where a lock (ci->m_lock) is held while waiting for a lease break acknowledgment. The issue affects Microsoft products versions 3.0 and 4.0. No CVSS score or detailed impact information is provided, and no known exploits are reported in the wild.

References

Community reviews

Loading reviews…