CVE-2026-50477CWE-122

Windows Kernel Elevation of Privilege Vulnerability

High · published July 14, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
25.3
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00333 · 25.3th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-07-14T17:07Z
EPSS history
Timeline
  • 14 JUL 17:07Z
    Windows Kernel Elevation of Privilege Vulnerability
    cvelistv5