CVE-2021-27101

criticalknown exploitedcovered by 1 sourcefirst seen 2021-11-03

Actively exploited. CVE-2021-27101 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.

Accellion FTA contains a SQL injection vulnerability exploited via a crafted host header in a request to document_root.html.

CSIRTS triage

What: The vulnerability is a SQL injection that can be exploited via a crafted host header.
Who is affected: Deployments of Accellion FTA.
Urgency: Remediation is urgent as the vulnerability is actively exploited and rated critical.
Action: Update to the latest version of Accellion FTA.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 92% of all EPSS-scored CVEs.

Advisory coverage (1)

criticalexploitedCVE-2021-27101: Accellion FTA SQL Injection Vulnerabilitycisa-kev · 2021-11-03

External references

NVD record for CVE-2021-27101

CVE.org record

CISA KEV catalog

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