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TI-2021-08672 Aliases CVE-2021-27104GHSA-54w2-m25f-gmqp

Accellion FTA 9_12_370 and earlier is affected by OS command execution via a crafted POST…

Priority CRITICAL 100Exploited in the wildCWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation Active In CISA KEV since 2021-11-03CISA due date 2021-11-17Known ransomware use
EPSS 0.56686 99th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:accellion:fta:*:*:*:*:*:*:*:*up to 9_12_370VulnerableAccellion
  • cpe:2.3:a:accellion:fta:*:*:*:*:*:*:*:* Versions up to 9_12_370 Vulnerable ·Accellion

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2021-11-03 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2021-27104
  3. 2026-10-03 Alias added: GHSA-54w2-m25f-gmqp

References

Advisory 2

  • TI-2021-08671 Accellion FTA 9_12_411 and earlier is affected by SSRF via a crafted POST request to… KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-08669 Accellion FTA 9_12_370 and earlier is affected by SQL injection via a crafted Host header… KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-08670 Accellion FTA 9_12_411 and earlier is affected by OS command execution via a local web… KEVCVSS 3.1HIGH 7.8
  • TI-2021-09141 Accellion FTA 9_12_432 and earlier is affected by argument injection via a crafted POST… CVSS 3.1CRITICAL 9.8
  • TI-2021-09142 Accellion FTA 9_12_432 and earlier is affected by stored XSS via a crafted POST request… CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences