Is CVE-2021-40870 actively exploited?

CVE-2021-40870 has no public evidence of in-the-wild exploitation as of 2025-11-10.

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

CVE-2021-40870 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2021-40870?

Patch guidance is available from aviatrix security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-40870.

Fix CVE-2021-40870 - CRITICAL aviatrix controller

Q: Which products are affected by CVE-2021-40870?

4 products: aviatrix controller, aviatrix controller, aviatrix controller, aviatrix controller.

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 Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-23

Metadata

Primary Vendor: AVIATRIX
Published: 9/13/2021
Last Modified: 11/10/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

aviatrix : controlleraviatrix : controlleraviatrix : controlleraviatrix : controller

Remediation Guidance

Executive Summary

View on NIST NVD