CVE-2026-96981: Windows PCI Bus Driver out-of-bounds write privilege escalation

CVE-2026-96981 · Severity: medium · CVSS 6.4 · Published 2026-11-10

The Windows PCI Bus Driver contains an out-of-bounds write vulnerability that allows an attacker with physical access to a computer to escalate their privileges. An attacker could exploit this to gain administrative control of the system, potentially accessing sensitive data or installing malware.

Technologies: Microsoft Windows. Vendors: Microsoft.

Quick answers

Is CVE-2026-96981 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-96981 being exploited in the wild.
How severe is CVE-2026-96981?
Medium severity, with a CVSS score of 6.4, published 10 November 2026.
Which products and versions are affected?
Microsoft Windows.
Is there a fix for CVE-2026-96981?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-96981 attacked?
It is attacked with physical access, in an operating system.
Am I affected by CVE-2026-96981?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An out-of-bounds write flaw in the Windows PCI Bus Driver permits privilege escalation through a physical attack vector. The vulnerability requires local physical access to the system to exploit; successful exploitation grants elevated privileges on the affected Windows machine.

Affected products

  • Microsoft Windows

Timeline

  • 2026-11-10: disclosed

References

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