Findings

CVE-2026-97803

Windows Kernel Elevation of Privilege Vulnerability

Published Oct 13, 2026 · updated Oct 15, 2026 · Microsoft Windows 11 version 26H1

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 13, 2026 · CIRCL Vulnerability Lookup

    Detected

    Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

  2. Oct 15, 2026 · CIRCL Vulnerability Lookup

    Updated

    Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

Affected

  • vendor Microsoft Windows 11 version 26H1version unspecified

Sources

References

CVE-2026-97803 · ZeroDay Findings