Microsoft Exchange Server
CVE-2020-17132 — Microsoft Exchange Remote Code Execution Vulnerability
Executive Summary
None
Overview
9.1
CVSS CRITICAL
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
High
USER INTERACTION
None
SCOPE
Changed
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 8.2
EPSS Score
0.8979
probability of exploitation in the next 30 days
0.99776 percentile - updated 2026-07-25
View on FIRST.org
Affected Products
5 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft Exchange Server 2013 Cumulative Update 23 | 4593466 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Exchange Server 2016 Cumulative Update 17 | 4593465 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Exchange Server 2016 Cumulative Update 18 | 4593465 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Exchange Server 2019 Cumulative Update 6 | 4593465 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Exchange Server 2019 Cumulative Update 7 | 4593465 (Security Update) |
Critical | Remote Code Execution | Maybe |
Patches
2 patches
| Article | Type | Restart |
|---|---|---|
4593466 |
Security Update | Maybe |
4593465 |
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
Steven Seeley of Source Incite
X41 D-SEC GmbH, Markus Vervier, Yasar Klawohn
Dlive(https://twitter.com/D1iv3) of Tencent Security Xuanwu Lab
References
On This Page