CVE-2021-34491

MediumCVSS 5.5

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

Exploitation Probability (EPSS)

Elevated risk

0.87%

55th percentile - higher than 55% of all known CVEs

Information Disclosure vulnerability in Win32k. Could allow an attacker to read data from system memory.

Risk of exposing sensitive data stored in memory, which could facilitate further attacks.

Install the latest Windows updates.

Original NVD description (English source)

Win32k Information Disclosure Vulnerability