CVE-2021-27104CISA KEVEPSS p98.9%

CVE-2021-27104Accellion FTA OS Command Injection Vulnerability

Accellion / FTA

Description

Accellion FTA contains an OS command injection vulnerability exploited via a crafted POST request to various admin endpoints.

Scoring

EPSS56.69% probability of exploitation · percentile 98.9% · 2026-06-18T12:00:27Z

CISA KEV entry

Added to KEV: 2021-11-03

(incoming)1

TypeTargetConfidenceTier
KEVEntryAccellion FTA OS Command Injection Vulnerabilitykev-cve-2021-271040%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
Accellion FTA SQL Injection Vulnerability
CVE
Accellion FTA Server-Side Request Forgery (SSRF) Vulnerability
CVE
CVE-2025-6541
CVE
FXC AE1021, AE1021PE OS Command Injection Vulnerability
CVE
CVE-2025-24861
CVE
CVE-2025-22941
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.