CriticalExploitedExchange Server
Microsoft Exchange Server Spoofing Vulnerability
Spoofing · Critical · CVSS 8.1 · Exploited in the wild. Affects: Exchange Server.
Vulnerabilities affecting Microsoft 365 / Office that are actively exploited, per CISA's Known Exploited Vulnerabilities catalog.
See also: Retirements · Breaking & API
Spoofing · Critical · CVSS 8.1 · Exploited in the wild. Affects: Exchange Server.
Denial of Service · Low · CVSS 4 · Exploited in the wild. Affects: Microsoft Defender Antimalware Platform.