CVE-2021-31961

MediumCVSS 6.1

Published: 14/07/2021(UTC)Updated: 10/08/2026(UTC)Translated: 10/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Elevated risk

0.74%

51th percentile - higher than 51% of all known CVEs

A vulnerability in Windows InstallService allows elevation of privilege. An attacker could exploit this flaw to gain higher privileges on the system.

Risk of privilege escalation, potentially allowing an attacker to take control of the system or perform administrative actions.

Install the latest security updates provided by Microsoft for Windows.

Original NVD description (English source)

Windows InstallService Elevation of Privilege Vulnerability