Vulnerability Intelligence Report
Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-31196
Microsoft Exchange Server Remote Code Execution Vulnerability
CISA KEV
SSVC: Active Exploitation
Automatable
CVSS Base Score
7.2
HIGH
Exploitability:1.3
Impact Score:5.9
EPSS Probability:46.38%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 23 | 15.00.0 < 15.00.1497.023 (affected) |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 20 | 15.01.0 < 15.01.2242.012 (affected) |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 21 | 15.01.0 < 15.01.2308.014 (affected) |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 10 | 15.02.0 < 15.02.0922.013 (affected) |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 9 | 15.02.0 < 15.02.0858.015 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2021-04-14T00:00:00 |
| Published | 2021-07-14T17:53:12 |
| Patch Date | 2021-07-13 |
| Last Updated | 2026-08-10T15:10:55 |
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