Important CVSS 8.4 EPSS 0.07404 2020-12 archive

Executive Summary

None

Overview

8.4
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Dec 8 2020
Last Updated Dec 8 2020
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.07404 — 0.93644 percentile

CVSS Vector

ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
High
USER INTERACTION
Required
SCOPE
Changed
Temporal Score: 7.6

EPSS Score

0.07404
probability of exploitation in the next 30 days
0.93644 percentile - updated 2026-06-20
View on FIRST.org

Affected Products

4 affected products
Product KB Article Severity Impact Restart Required
Microsoft Exchange Server 2016 Cumulative Update 17 4593465 (Security Update) Important Remote Code Execution Maybe
Microsoft Exchange Server 2016 Cumulative Update 18 4593465 (Security Update) Important Remote Code Execution Maybe
Microsoft Exchange Server 2019 Cumulative Update 6 4593465 (Security Update) Important Remote Code Execution Maybe
Microsoft Exchange Server 2019 Cumulative Update 7 4593465 (Security Update) Important Remote Code Execution Maybe

Patches

1 patch
Article Type Restart
4593465 Security Update Maybe

Known Exploits

Acknowledgments