CVE-2023-21689

CriticalCVSS 9.8

Published: 14/02/2023(UTC)Updated: 19/08/2026(UTC)Translated: 19/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Very high risk

26.50%

98th percentile - higher than 98% of all known CVEs

Remote code execution vulnerability in Microsoft Protected Extensible Authentication Protocol (PEAP). Allows an attacker to execute arbitrary code.

Risk of system compromise if an attacker can deliver malicious network packets.

Apply security patches for PEAP from Microsoft.

Original NVD description (English source)

Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability