Known Exploited Vulnerabilities · CISA KEV Catalog

CVE-2021-42321: Microsoft Exchange Server Remote Code Execution Vulnerability

An authenticated attacker could leverage improper validation in cmdlet arguments within Microsoft Exchange and perform remote code execution.

Read the original at CISA KEV Catalog ↗

Topics
Vulnerabilities & Patching
Mentions
CVE-2021-42321Microsoft
Related
CVE-2026-96951: Microsoft Windows Command Injection Vulnerability Known Exploited Vulnerabilities · Oct 13, 2026
CVE-2026-65660: Microsoft Share Point Code Injection Vulnerability Known Exploited Vulnerabilities · Sep 25, 2026