MEDIUM CISA KEV
CVE-2021-31207
CVSS v3
6.6
MEDIUM
EPSS Score
93.9 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
Microsoft Exchange Server Security Feature Bypass Vulnerability
CISA Known Exploited Vulnerability
- Date Added
- 2021-11-03
- Patch Due Date
- 2021-11-17
- Ransomware Use
- Known
Technical details
- Published
- 2021-05-11
Frequently asked questions
What is CVE-2021-31207?
Microsoft Exchange Server Security Feature Bypass Vulnerability
Is CVE-2021-31207 actively exploited?
Yes. CVE-2021-31207 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2021-11-17.
What is the CVSS score for CVE-2021-31207?
CVE-2021-31207 has a CVSS v3 base score of 6.6 (MEDIUM severity).
Is CVE-2021-31207 affecting your environment?
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