CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.3. It affects Microsoft, Exchange. It is listed in CISA's Known Exploited Vulnerabilities catalog, indicating confirmed active exploitation in the wild. Its EPSS score suggests a 97.5% probability of exploitation in the next 30 days.
CISA KEV Details
Status: This CVE is listed in CISA's Known Exploited Vulnerabilities catalog.
Ransomware use: Unknown
Added to KEV: 2022-01-18
Required action: Apply updates per vendor instructions.
CVE
CVE-2021-33766
Severity
HIGH
CVSS
7.3
EPSS
97.50%
Microsoft Exchange
Original NVD Description
Microsoft Exchange Server Information Disclosure Vulnerability
Related CVEs
Other vulnerabilities affecting the same vendor(s)