When was CVE-2021-40870 disclosed?

CVE-2021-40870 was first published in the National Vulnerability Database on September 13, 2021, with the most recent update on November 10, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

What is the CVSS score of CVE-2021-40870?

CVE-2021-40870 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-40870?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-40870, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

CVE-2021-40870

CRITICALCVSS 9.8

9.8

An issue was discovered in Aviatrix Controller 6.x before 6.5-1804.1922. Unrestricted upload of a file with a dangerous type is possible, which allows an unauthenticated user to execute arbitrary code via directory traversal.

CVSS v3: 9.8
EG Score: —
EPSS: —
KEV: Not listed

References (7)

cve@mitrehttp://packetstormsecurity.com/files/164461/Aviatrix-Controller-6.x-Path-Traversal-Code-Execution.html
cve@mitrehttps://docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021
cve@mitrehttps://wearetradecraft.com/advisories/tc-2021-0002/
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/164461/Aviatrix-Controller-6.x-Path-Traversal-Code-Execution.html
af854a3a-2127-422b-91ae-364da2661108https://docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021
af854a3a-2127-422b-91ae-364da2661108https://wearetradecraft.com/advisories/tc-2021-0002/
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40870

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CVE-2021-40870

Published

Last Modified

References (7)

Weakness Classification(3)

Data Freshness Timeline

Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-40870?

CVE-2021-40870

📅 Published

🔄 Last Modified

🔗 References (7)

Weakness Classification(3)

Data Freshness Timeline

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-40870?

Published

Last Modified

References (7)

Frequently asked(4)