Vulnerability Intelligence Report
Microsoft Exchange Server Validation Key Remote Code Execution Vulnerability
CVE-2020-0688
A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka 'Microsoft Exchange Memory Corruption Vulnerability'.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
EPSS Probability:99.97%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-287 ↗CWE-287 Improper Authentication
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Microsoft Exchange Server 2013 | Cumulative Update 23 (affected) |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 3 | unspecified (affected) |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 14 | unspecified (affected) |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 15 | unspecified (affected) |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 4 | unspecified (affected) |
| Microsoft | Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 30 | unspecified (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2019-11-04T00:00:00 |
| Published | 2020-02-11T21:22:59 |
| Last Updated | 2025-10-21T23:35:51 |
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