Vulnerability Details CVE-2021-20090
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.944
EPSS Ranking 100.0%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
Proposed Action
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.
Ransomware Campaign
Unknown
References
- https://www.kb.cert.org/vuls/id/914124
- https://www.secpod.com/blog/arcadyan-based-routers-and-modems-under-active-exploitation/
- https://www.tenable.com/security/research/tra-2021-13
- https://www.kb.cert.org/vuls/id/914124
- https://www.secpod.com/blog/arcadyan-based-routers-and-modems-under-active-exploitation/
- https://www.tenable.com/security/research/tra-2021-13
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20090
Products affected by CVE-2021-20090
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cpe:2.3:h:buffalo:wsr-2533dhp3-bk:-
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cpe:2.3:h:buffalo:wsr-2533dhpl2-bk:-
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cpe:2.3:o:buffalo:wsr-2533dhp3-bk_firmware:-
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cpe:2.3:o:buffalo:wsr-2533dhp3-bk_firmware:1.24
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cpe:2.3:o:buffalo:wsr-2533dhpl2-bk_firmware:-
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cpe:2.3:o:buffalo:wsr-2533dhpl2-bk_firmware:1.02