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Vulnerabilities

Vulnerability · CVE-2021-40870

Aviatrix Controller Unrestricted Upload of File

Published Sep 13, 2021 · catalog updated Jun 16, 2026 · Aviatrix Aviatrix Controller

Patch now

CVE-2021-40870 is in the CISA known-exploited catalog, due Feb 1, 2022. Confirm Aviatrix Aviatrix Controller against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
93.02%
Remediation
Remediation guidance
Affected products
cpe aviatrix/controller · vendor Aviatrix Aviatrix Controller

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe aviatrix/controllerversion unspecified
  • vendor Aviatrix Aviatrix Controllerversion unspecified

How to fix CVE-2021-40870

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2021-40870 is in the CISA known-exploited catalog, due Feb 1, 2022. Confirm Aviatrix Aviatrix Controller against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions.

What should an analyst verify?

CWE-23; CWE-25; CWE-96. EPSS 93.02%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 13, 2021 · Catalog

    Detected

    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.

  2. Jan 18, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Feb 1, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Sources

  • CISA KEVConfirmed exploitationCVE-2021-40870

    Unrestricted upload of a file with a dangerous type is possible, which allows an unauthenticated user to execute arbitrary code via directory traversal.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2021-40870

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-40870

    30-day exploitation probability 93.0%

    first.org
  • NIST NVDVulnerability recordCVE-2021-40870

    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.

    nvd.nist.gov
  • Packet Storm SecurityCited referencehttp://packetstormsecurity.com/files/164461/Aviatrix-Controller-6.x-Path-Traversal-Code-Execution.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com
  • VulnCheck KEVConfirmed exploitationCVE-2021-40870

    Unrestricted upload of a file with a dangerous type is possible, which allows an unauthenticated user to execute arbitrary code via directory traversal.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.