CISA Known Exploited Vulnerability
This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.
Remediation Deadline: Nov 17, 2021
Description
Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation.
EPSS — Exploit Probability
94.0%
Higher than 99.9% of all CVEs
Required Action
https://nvd.nist.gov/vuln/detail/CVE-2021-34523
Risk Assessment
CRITICALIn CISA KEV
High EPSS
Ransomware
Details
- Severity
- High
- EPSS
- 94.0%
- CISA KEV
- Yes
- Ransomware
- Known
- Articles
- 0
Timeline
Published
Nov 3, 2021
Added to KEV
Nov 3, 2021
Remediation Due
Nov 17, 2021