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CVE-2026-98537VulnerabilityPublished Updated

flush dependency check · workqueue: Fix NULL current_pwq deref

Affects MicrosoftSource GCVE Database

0
Authoritative record:CVE-2026-98537· Medium

Not known to be exploited · fixed in f97e6d0572d1b39998e053732332bc3cfdd0b9aa : update Microsoft when convenient.

Data as of 28 Oct 2026, 09:13 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Patch
Available – fixed in f97e6d0572d1b39998e053732332bc3cfdd0b9aa, db6365ced4d5855e321f772b240c0e473bcfcdd5, cc190a6a1d20b87e6a9435202fc2a3bd84c79fb3 +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 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 to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ fca839c00a12d682cb59b3b620d109a1d850b262, < f97e6d0572d1b39998e053732332bc3cfdd0b9aa
Fixed in
  • f97e6d0572d1b39998e053732332bc3cfdd0b9aa
LinuxLinuxAffected
  • ≥ fca839c00a12d682cb59b3b620d109a1d850b262, < db6365ced4d5855e321f772b240c0e473bcfcdd5
Fixed in
  • db6365ced4d5855e321f772b240c0e473bcfcdd5
LinuxLinuxAffected
  • ≥ fca839c00a12d682cb59b3b620d109a1d850b262, < cc190a6a1d20b87e6a9435202fc2a3bd84c79fb3
Fixed in
  • cc190a6a1d20b87e6a9435202fc2a3bd84c79fb3
LinuxLinuxAffected
  • ≥ fca839c00a12d682cb59b3b620d109a1d850b262, < 513121e69388604619ea8c0ee07e86a3d1b5b5dc
Fixed in
  • 513121e69388604619ea8c0ee07e86a3d1b5b5dc
LinuxLinuxAffected
  • ≥ fca839c00a12d682cb59b3b620d109a1d850b262, < 9bb739a5c5a570c28a62afb98e9326e2a49743c1
Fixed in
  • 9bb739a5c5a570c28a62afb98e9326e2a49743c1
LinuxLinuxAffected
  • ≥ fca839c00a12d682cb59b3b620d109a1d850b262, < 8ffececcb88262389b4f91fed0fe4884b68204bc
Fixed in
  • 8ffececcb88262389b4f91fed0fe4884b68204bc

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

A vulnerability identified as CVE-2026-98537 affects Microsoft products version 3.0 and 4.0. It involves a NULL pointer dereference in the workqueue component during a flush dependency check, which could potentially lead to a denial of service or system instability. No CVSS score or detailed impact information is provided.

References

Community reviews

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