CVE-2021-20090: Arcadyan Buffalo Firmware Path Traversal Vulnerability
First published: Thu Apr 29 2021(Updated: )
A path traversal vulnerability in the web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 could allow unauthenticated remote attackers to bypass authentication.
Credit: vulnreport@tenable.com vulnreport@tenable.com vulnreport@tenable.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Arcadyan Buffalo Firmware | ||
| All of | ||
| Arcadyan Buffalo Firmware | <=1.02 | |
| Buffalo Wsr-2533dhpl2 | ||
| All of | ||
| Buffalo Wsr-2533dhp3-bk Firmware | <=1.24 | |
| Buffalo WSR-2533DHP3-BK | ||
| Arcadyan Buffalo Firmware | <=1.02 | |
| Buffalo Wsr-2533dhpl2 | ||
| Buffalo Wsr-2533dhp3-bk Firmware | <=1.24 | |
| Buffalo WSR-2533DHP3-BK |
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Reference Links
Frequently Asked Questions
What is CVE-2021-20090?
CVE-2021-20090 is a path traversal vulnerability in Arcadyan Buffalo firmware that allows unauthenticated, remote attackers to bypass authentication and access sensitive information.
Which routers are affected by CVE-2021-20090?
The vulnerability affects multiple routers across several different vendors using Arcadyan Buffalo firmware.
What is the severity of CVE-2021-20090?
The severity of CVE-2021-20090 is rated as critical with a CVSS score of 9.8.
How can I fix CVE-2021-20090?
To fix CVE-2021-20090, update the firmware of affected routers to a patched version provided by the vendor.
Where can I find more information about CVE-2021-20090?
More information about CVE-2021-20090 can be found at the following references: [1] [2] [3].
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- vendor/arcadyan
- canonical/arcadyan buffalo firmware
- vendor/buffalo
- version/arcadyan buffalo firmware/1.02
- canonical/buffalo wsr-2533dhpl2
- canonical/buffalo wsr-2533dhp3-bk firmware
- version/buffalo wsr-2533dhp3-bk firmware/1.24
- canonical/buffalo wsr-2533dhp3-bk