CVE-2021-20090—Arcadyan Buffalo Firmware Path Traversal Vulnerability

PUBLISHEDvulnerability record
2021-11-03 · last modified June 21, 2025

Metadata

CVE ID:
CVE-2021-20090
Project:
Arcadyan
Product:
Buffalo Firmware
Date Added:
2021-11-03
Due Date:
2021-11-17
Last Updated:
June 21, 2025

Vulnerability Name

Arcadyan Buffalo Firmware Path Traversal Vulnerability

Description

Arcadyan Buffalo firmware contains a path traversal vulnerability that could allow unauthenticated, remote attackers to bypass authentication and access sensitive information. This vulnerability affects multiple routers across several different vendors.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
Unknown

Action

Apply updates per vendor instructions.

Additional Notes

  • https://nvd.nist.gov/vuln/detail/CVE-2021-20090

Related Weaknesses

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