Vulnerability Intelligence Report
Microsoft Exchange Server Information Disclosure Vulnerability
CVE-2020-17143
Microsoft Exchange Server Information Disclosure Vulnerability
No Active Exploit Signals
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
EPSS Probability:70.63%
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 < publication (affected) |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 17 | 15.01.0 < publication (affected) |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 18 | 15.01.0 < publication (affected) |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 6 | 15.02.0 < publication (affected) |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 7 | 15.02.0 < publication (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
70.632%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2020-08-04T00:00:00 |
| Published | 2020-12-09T23:36:55 |
| Patch Date | 2020-12-08 |
| Last Updated | 2026-06-09T18:07:56 |
Community Chatter & Buzz