Fixed Intel

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

CVE-2021-31207

High
EPSS 93.8%CISA KEVRansomware
Microsoft/Exchange Server

Description

Microsoft Exchange Server contains an unspecified vulnerability that allows for security feature bypass.

EPSS — Exploit Probability

93.8%

Higher than 99.9% of all CVEs

Required Action

https://nvd.nist.gov/vuln/detail/CVE-2021-31207

Risk Assessment

CRITICAL
In CISA KEV
High EPSS
Ransomware

Details

Severity
High
EPSS
93.8%
CISA KEV
Yes
Ransomware
Known
Articles
0

Timeline

Published

Nov 3, 2021

Added to KEV

Nov 3, 2021

Remediation Due

Nov 17, 2021

Affected Product

Microsoft

Exchange Server

View all Microsoft CVEs