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CVE-2026-98977VulnerabilityPublished Updated

Microsoft · namespace: handle mount locking for automounts correctly

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98977· Medium

Not known to be exploited · fixed in f9b488641cfa63f9b41321530c543688b2e34f03 : update Microsoft when convenient.

Data as of 7 Nov 2026, 12:19 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in f9b488641cfa63f9b41321530c543688b2e34f03, e01c79761c7b3373e80094c5eadb21cb864fa8bc, b3ccde78f1608836e62320428abc0e8aa9cf2329 +6

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Oct 2026

  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 7 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=3.8.6 <3.9
Fixed in
  • f9b488641cfa63f9b41321530c543688b2e34f03
  • e01c79761c7b3373e80094c5eadb21cb864fa8bc
  • b3ccde78f1608836e62320428abc0e8aa9cf2329
  • 91676705756af6a59a515087b8b854c8a28d12eb
  • 587d25c4b13d49c8fd05df2f71240f73bb2a058c
  • 33aadc7c72055fca93cb5a3691d836ebf8b31c9b
  • 6ab37fae14196ba2262b152a7d9222c50356d278
  • 5e8f3ac8fa3d411b422ad32b9168c46a4824cc79
  • 3.9
LinuxLinuxAffected
  • =3.9
Fixed in–

Description

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

References

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