Critical severity9.8CISA KEVNVD Advisory· Published Feb 16, 2021· Updated Jun 17, 2026

CVE-2021-27104

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Accellion/FTA2 versions
cpe:2.3:a:accellion:fta:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:accellion:fta:*:*:*:*:*:*:*:*range: <=9_12_370
- (no CPE)range: <=9_12_370
Accellion/FTAdescription

Patches

Vulnerability mechanics

References

github.com/accellion/CVEs/blob/main/CVE-2021-27104.txtnvdBroken LinkThird Party Advisory
www.accellion.com/products/fta/nvdProductVendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalognvdUS Government Resource

News mentions

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cvss	0.637
epss	0.045
exploit	0.000
kev	0.120
patch	0.000
ransomware	0.060