KEV · Activement exploitée
CVE-2021-26855
CRITICAL 9.1
KEV
EN Microsoft Exchange Server Remote Code Execution Vulnerability
EPSS
94.31%
exploit probable
percentile 100.0%
CISA Known Exploited Vulnerability
- Ajouté au KEV
- 2021-11-03
- Deadline remédiation
- 2022-05-03
- Action requise
- Apply updates per vendor instructions.
- Ransomware
- Oui, campagne ransomware connue