CVE-2026-45487CWE-367

Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability

High · published June 9, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
11.1
In the wild
Unconfirmed
What it is

Time-of-check time-of-use (TOCTOU) race condition in Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00214 · 11.1th percentile
Weakness
CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition
Published
2026-06-09T17:04Z
EPSS history
Timeline
  • 09 JUN 17:04Z
    Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability
    cvelistv5