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CVE-2026-98508VulnerabilityPublished Updated

Microsoft · drm/virtio: fix NULL pointer dereference on fence allocation failure

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98508· Medium

Not known to be exploited · fixed in f2f1683955b95c9b958069da3050f7e8e129ff88 : update Microsoft when convenient.

Data as of 2 Nov 2026, 08:46 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in f2f1683955b95c9b958069da3050f7e8e129ff88, ecced0076b700b5896e52af10d0776be8be36b0d, a8b83ed4a4b1d04c756f53e375e86d3881f66e72 +4

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 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 1 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=6.1.54 <6.2
  • >=6.5.4 <6.6
Fixed in
  • f2f1683955b95c9b958069da3050f7e8e129ff88
  • ecced0076b700b5896e52af10d0776be8be36b0d
  • a8b83ed4a4b1d04c756f53e375e86d3881f66e72
  • 9571ab7493561afb4624d69572a7ebb67d76d10f
  • 846b3c64fe3e77d9db20a7e3e62dbbb637c773e1
  • 6.6
  • 6.2
LinuxLinuxAffected
  • =6.6
Fixed in–
Linuxlinux/kernelpkg:deb/linux/kernelOther threatsAffected
  • >=6.1.54 <6.2
  • >=6.5.4 <6.6
  • =6.6
Fixed in
  • 6.2
  • 6.6

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-2026-98508 affects Microsoft products version 3.0 and 4.0. It involves a NULL pointer dereference occurring during fence allocation failure in the drm/virtio component. The issue has been published but lacks detailed technical or impact information and no CVSS score is provided.

References

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