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CVE-2021-20090 Scanner

Detects 'Path Traversal' vulnerability in Buffalo WSR-2533DHPL2 and Buffalo WSR-2533DHP3 affects v. WSR-2533DHPL2 <=1.02, WSR-2533DHP3 <= 1.24.


Short Info



Single Scan

Single Scan

Can be used by

Asset Owner

Estimated Time

10 sec

Scan only one

Domain, Ipv4



Buffalo WSR-2533DHPL2 and Buffalo WSR-2533DHP3 are powerful wireless routers that are widely used in homes, offices, and other settings where high-speed and reliable internet connectivity is a must-have. These routers come with state-of-the-art features that make them stand out from the competition, such as 4x4 802.11ac Wave2 technology, tri-band support for maximum speed and flexibility, and beamforming that ensures stable and strong connections even with multiple devices connected to the network. They are the go-to choice for those that demand top-notch wireless performance, making them ideal for homes and small to medium-sized businesses.

Recently, a serious vulnerability was discovered in the web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24. This vulnerability is known as CVE-2021-20090 and is a path traversal attack that allows attackers to bypass authentication and gain unauthorized access to the system. In essence, this means that an unauthenticated remote attacker can exploit this vulnerability remotely, without the need for any credentials or other authentication.

This vulnerability can lead to a range of malicious activities, including information disclosure, privilege escalation, and even complete takeover of the system. In particular, attackers can use this vulnerability to retrieve sensitive information stored on the router, such as login credentials, configuration files, and other confidential data. They can also use it to modify or delete data, add new users with administrative privileges, and even install malware or other malicious software.

In conclusion, it is essential to stay vigilant in protecting our digital assets from vulnerabilities such as CVE-2021-20090. By following the precautions listed above, and staying informed about the latest security threats and best practices, we can ensure that our wireless networks remain secure and reliable. provides a comprehensive platform that enables users to stay on top of the latest security threats and vulnerabilities, allowing them to protect their assets with ease and efficiency.



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