CVE-2021-34523

Microsoft Exchange Server Elevation of Privilege Vulnerability

Published Jul 14, 2021 CVSS 3.1 · 9 Critical EPSS 100.0% KEV · Listed
Description
Microsoft Exchange Server Elevation of Privilege Vulnerability

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:exchange_server:*:cumulative_update_19:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:*:cumulative_update_20:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:*:cumulative_update_23:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:*:cumulative_update_8:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:*:cumulative_update_9:*:*:*:*:*:*
References
Type Values Removed Values Added
Metrics epss

{'score': 0.94149}

epss

{'score': 0.94053}

Type Values Removed Values Added
Metrics epss

{'score': 0.93973}

epss

{'score': 0.94149}

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2021-11-03'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Aug 10, 2026, 3:11 PM
Reserved
Jun 9, 2021, 12:00 AM
Status
Analyzed
Published
Jul 14, 2021, 6:15 PM
Modified
Aug 10, 2026, 7:59 PM