CVE-2021-34523

Microsoft Exchange Server Elevation of Privilege Vulnerability

  • Published Jul 14, 2021
  • CVSS 9.0 critical
  • 100.0% chance of exploitation in the next 30 days (EPSS)
  • In CISA's Known Exploited Vulnerabilities catalog
  • A Metasploit module exploits it
  • A fix is available

Affected software

In the news

CVE-2021-34523 at the National Vulnerability Database