CVE-2021-33768

HIGH EXPLOITED

Microsoft Exchange Server - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2021-33768 has been observed exploited in the wild (reported by VulnCheck KEV).

Description

Microsoft Exchange Server Elevation of Privilege Vulnerability

References (1)

Core 1
Core References

Scores

CVSS v3 8.0
EPSS 0.0116
EPSS Percentile 63.9%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

VulnCheck KEV 2022-09-14
Status published
Products (2)
microsoft/exchange_server 2016 cumulative_update_20 (2 CPE variants)
microsoft/exchange_server 2019 cumulative_update_10 (2 CPE variants)
Published Jul 14, 2021
Tracked Since Feb 18, 2026