CVE-2021-27102

HIGH7.8

CISA KEV

Published 2021-02-16 · Updated 2026-06-17 · Source cve@mitre.org

Summary

CVE-2021-27102 is a high-severity (CVSS 7.8) vulnerability in Accellion FTA. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by November 17, 2021. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Accellion has 4 vulnerabilities in the KEV catalog, 4 of them linked to ransomware.

All 4 known-exploited Accellion vulnerabilities →

Description

Accellion FTA 9_12_411 and earlier is affected by OS command execution via a local web service call. The fixed version is FTA_9_12_416 and later.

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-78CWE-78

CISA Known-Exploited Vulnerability

Product: Accellion — FTA

Name: Accellion FTA OS Command Injection Vulnerability

Date added: 2021-11-03 · Due: 2021-11-17

USED IN RANSOMWARE

Required action: Apply updates per vendor instructions.

References

View on NVD

More exploited Accellion vulnerabilities

Most recently added to CISA KEV

CVE-2021-27104
RANSOMWARE
FTA — Accellion FTA OS Command Injection Vulnerability
added 2021-11-03
CVE-2021-27101
RANSOMWARE
FTA — Accellion FTA SQL Injection Vulnerability
added 2021-11-03
CVE-2021-27103
RANSOMWARE
FTA — Accellion FTA Server-Side Request Forgery (SSRF) Vulnerability
added 2021-11-03

View all →

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