Microsoft Exchange Server
CVE-2020-17083 — Microsoft Exchange Server Remote Code Execution Vulnerability
Executive Summary
None
Overview
5.5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
Low
USER INTERACTION
Required
SCOPE
Changed
CONFIDENTIALITY
Low
INTEGRITY
Low
AVAILABILITY
Low
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 4.8
EPSS Score
0.11981
probability of exploitation in the next 30 days
0.95589 percentile - updated 2026-06-21
View on FIRST.org
Affected Products
5 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft Exchange Server 2013 Cumulative Update 23 | 4588741 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Exchange Server 2016 Cumulative Update 17 | 4588741 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Exchange Server 2016 Cumulative Update 18 | 4588741 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Exchange Server 2019 Cumulative Update 6 | 4588741 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Exchange Server 2019 Cumulative Update 7 | 4588741 (Security Update) |
Important | Remote Code Execution | Maybe |
Patches
1 patch
| Article | Type | Restart |
|---|---|---|
4588741 |
Security Update | Maybe |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
References
On This Page