PT-2026-58136 · Microsoft · Windows App Installer

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-48572

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Windows App Installer (affected versions not specified)

Description A race condition exists in the Windows App Installer, which occurs when concurrent execution using a shared resource lacks proper synchronization. This flaw allows an authorized attacker to elevate privileges locally.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

LPE

Use After Free

Race Condition

Weakness Enumeration

CWE-416

CWE-362

Related Identifiers

CVE-2026-48572

Affected Products

Windows App Installer

References · 3

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48572 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-48572 · Security Note
• https://twitter.com/windowsforum/status/2077106400673542515 · Twitter Post