CVE-2021-27104
CVSS v3
9.8
CRITICAL
EPSS Score
8.9 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
Accellion FTA 9_12_370 and earlier is affected by OS command execution via a crafted POST request to various admin endpoints. The fixed version is FTA_9_12_380 and later.
CISA Known Exploited Vulnerability
- Date Added
- 2021-11-03
- Patch Due Date
- 2021-11-17
- Ransomware Use
- Known
Technical details
- Published
- 2021-02-16
Frequently asked questions
What is CVE-2021-27104?
Accellion FTA 9_12_370 and earlier is affected by OS command execution via a crafted POST request to various admin endpoints. The fixed version is FTA_9_12_380 and later.
Is CVE-2021-27104 actively exploited?
Yes. CVE-2021-27104 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-2021-27104?
CVE-2021-27104 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-27104 affecting your environment?
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