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CVE-2021-40870

Published: Sep 13, 2021Updated: Nov 10, 2025 Sources: CVE List NVD BDUCWE-23
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
92.4%
Top 0.2%
CISA KEV
Active Exploitation
Since Jan 18, 2022
Exploits
1 Known
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

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 Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-23

Affected Products

Aviatrix ControllerAviatrix Systems, Inc.
SaaS
Networking Infrastructure / vpn-gateway
controlleraviatrix
SaaS
Networking Infrastructure / vpn-gateway
n/an/a
aviatrix systems, inc.commercialNetworking Infrastructureaka aviatrix
aviatrixcommercialUSNetworking Infrastructure

Attack Graph

Products CVE Techniques Tactics

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Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Jan 18, 2022
Remediation due:Feb 1, 2022

Required action: Apply updates per vendor instructions.

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Discovery
View detailed technique mapping

References

https://nvd.nist.gov/vuln/detail/CVE-2021-40870
nvd.nist.gov
http://packetstormsecurity.com/files/164461/Aviatrix-Controller-6.x-Path-Traversal-Code-Execution.html
packetstormsecurity.com
https://docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021
docs.aviatrix.com
and 3 more references View all →

Timeline

Published
Sep 13, 2021
Added to CISA KEV
Jan 18, 2022
Last Updated
Nov 10, 2025

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