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CVE-2026-98984VulnerabilityPublished Updated

Microsoft · dcache: don't put a mountpoint on a dentry that's being removed

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98984· Medium

Not known to be exploited · fixed in 982d231ad863bb14f7bda4852ab942c0203cec4b : 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 982d231ad863bb14f7bda4852ab942c0203cec4b, 793cb67b0f52d00c67bd0e76bc57455b5c70ebb8, 390ddcea2a8aca411b931a8e2863a80ccca8d2b3 +9

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
  • >=4.1.40 <4.2
  • >=4.4.54 <4.5
  • >=4.9.15 <4.10
  • >=4.10.3 <4.11
Fixed in
  • 982d231ad863bb14f7bda4852ab942c0203cec4b
  • 793cb67b0f52d00c67bd0e76bc57455b5c70ebb8
  • 390ddcea2a8aca411b931a8e2863a80ccca8d2b3
  • 96ca40461d8b91e13061ec4afb59bae6f07a516a
  • 75f4197f1e11d2eb75c2d6f916a7d4764db621e5
  • 30a1625022411a387cce9239408ece9955bc9c58
  • 25e3ce3e2ebdd8ed3fc19dc1f7e3bc487f9240f3
  • 5e6bfd9f249f2c74bb63c0f06ad959da3bee0971
  • 4.11
  • 4.10
  • 4.5
  • 4.2
LinuxLinuxAffected
  • =4.11
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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