PT-2026-70701 · Microsoft · Windows Key Guard+1
CVE-2026-66799
·
Published
2026-08-11
·
Updated
2026-08-14
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Windows Key Guard (affected versions not specified)
Description
A heap-based buffer overflow occurs in Windows Key Guard, which allows an authorized attacker to elevate privileges locally. A heap-based buffer overflow is a memory corruption issue that happens when a program writes more data to a heap-allocated buffer than it can hold.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
DoS
Heap Based Buffer Overflow
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Windows
Windows Key Guard