PT-2026-58331 · Microsoft · Install Service+1

CVE-2026-50343

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Published

2026-06-03

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Updated

2026-07-22

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Microsoft Install Service (affected versions not specified)
Description Improper privilege management in the Microsoft Install Service allows an authorized attacker to elevate privileges locally, potentially granting full control of the system and enabling the execution of arbitrary code.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Improper Privilege Management

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Weakness Enumeration

Related Identifiers

BDU:2026-09907
CVE-2026-50343

Affected Products

Install Service
Windows