[ CVE-2022-41080 · Published 9 Nov 2022 ]

Microsoft Exchange Server Privilege Escalation Vulnerability

Exploited · CISA KEV CVSS 8.8 EPSS 77%Fix available

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2023-01-10
  • Known to be used in ransomware campaigns
  • EPSS: 77% chance of exploitation in the next 30 days (higher than 100% of CVEs)

[ Description ]Official description

Microsoft Exchange Server Elevation of Privilege Vulnerability

CISA: Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation. This vulnerability is chainable with CVE-2022-41082, which allows for remote code execution.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 31 Jan 2023): Apply updates per vendor instructions.