CVE-2021-40870
Published 2021-09-13 · Updated 2026-06-17 · Source cve@mitre.org
Summary
CVE-2021-40870 is a critical-severity (CVSS 9.8) vulnerability in Aviatrix Aviatrix Controller. CISA added it to the Known Exploited Vulnerabilities catalog on January 18, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by February 1, 2022. CISA does not currently list it as used in ransomware campaigns. Aviatrix has 2 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.
All 2 known-exploited Aviatrix vulnerabilities →Description
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 vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: Aviatrix — Aviatrix Controller
Name: Aviatrix Controller Unrestricted Upload of File
Date added: 2022-01-18 · Due: 2022-02-01
Required action: Apply updates per vendor instructions.
References
- http://packetstormsecurity.com/files/164461/Aviatrix-Controller-6.x-Path-Traversal-Code-Execution.html
- https://docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021
- https://wearetradecraft.com/advisories/tc-2021-0002/
- http://packetstormsecurity.com/files/164461/Aviatrix-Controller-6.x-Path-Traversal-Code-Execution.html
- https://docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021
- https://wearetradecraft.com/advisories/tc-2021-0002/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40870