CVE-2021-42321

Microsoft Exchange Server Remote Code Execution Vulnerability
91.7%
EPSS
100%
Percentile
Yes
Known exploited
0
APAC news · 90d
Summary

An authenticated attacker could leverage improper validation in cmdlet arguments within Microsoft Exchange and perform remote code execution.

Vendor
Microsoft
Product
Exchange
Added to KEV
Nov 17, 2021
Remediation due
Dec 1, 2021 (US federal deadline)
Ransomware use
Known
Weakness
CWE-184, CWE-502
EPSS
91.7% as of Nov 12
In the news
  • No Asia-Pacific article names this CVE yet.
Linked
Actors named alongside it:
none
Incidents exploiting it:
  • none recorded