CVE-2026-42900CWE-362CWE-416

Microsoft Windows App Store Elevation of Privilege Vulnerability

High · published July 14, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
44.8
In the wild
Unconfirmed
What it is

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows App Store allows an unauthorized attacker to elevate privileges over a network.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00542 · 44.8th percentile
Weaknesses
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'); CWE-416 · Use After Free
Published
2026-07-14T17:04Z
EPSS history
Timeline
  • 14 JUL 17:04Z
    Microsoft Windows App Store Elevation of Privilege Vulnerability
    cvelistv5