CVE-2026-112969: Windows Kernel heap-based buffer overflow

CVE-2026-112969 · Severity: medium · CVSS 6.6 · Published 2026-11-10

A memory flaw in the Windows Kernel allows an attacker with physical access and user authorization to run code with elevated system privileges. An attacker could exploit this to take control of the affected system, bypass security controls, or install persistent malware.

Technologies: Microsoft Windows Kernel. Vendors: Microsoft.

Quick answers

Is CVE-2026-112969 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-112969 being exploited in the wild.
How severe is CVE-2026-112969?
Medium severity, with a CVSS score of 6.6, published 10 November 2026.
Which products and versions are affected?
Microsoft Windows Kernel.
Is there a fix for CVE-2026-112969?
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-2026-112969 attacked?
It is attacked with physical access, in an operating system.
Am I affected by CVE-2026-112969?
Check whether you run Microsoft Windows Kernel. 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

A heap-based buffer overflow exists in the Windows Kernel that can be triggered by an authorized attacker via a physical attack vector. Successful exploitation grants privilege escalation from user mode to kernel mode, enabling full system compromise. The vulnerability requires both physical access and prior authorization on the target system.

Affected products

  • Microsoft Windows Kernel

Timeline

  • 2026-11-10: disclosed

References

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