VDB
CVE-2021-20090
CVE-2021-20090
PUBLISHED
KEV
CVSS 7.5 HIGH
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.
EPSS 94.40% · 100.0th percentile
Risk Scores
CVSS 2.0
7.5
EPSS Score
94.40%
100.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| buffalo | wsr-2533dhp3-bk_firmware | 0, 0, 0 |
| n/a | Buffalo WSR-2533DHPL2, Buffalo WSR-2533DHP3 | WSR-2533DHPL2 <=1.02, WSR-2533DHP3 <= 1.24, WSR-2533DHPL2 <=1.02, WSR-2533DHP3 <= 1.24 |
| buffalo | wsr-2533dhpl2-bk_firmware | 0, 0, 0 |
Timeline
- Apr 13, 2021 CVE Published
- Apr 30, 2021 EPSS Score
- Jul 3, 2021 EPSS Score
- Aug 6, 2021 VulnCheck KEV Exploitation
- Aug 24, 2021 VulnCheck KEV Exploitation
- Sep 20, 2021 VulnCheck KEV Exploitation
- Nov 3, 2021 CISA KEV Added
- Nov 5, 2021 EPSS Score
- Nov 8, 2021 PoC Published
- Nov 20, 2021 PoC Published
- Dec 17, 2021 VulnCheck KEV Exploitation
- Jan 6, 2022 EPSS Score
References
- https://www.tenable.com/security/research/tra-2021-13 url
- VU#914124 third-party-advisory
- https://www.secpod.com/blog/arcadyan-based-routers-and-modems-under-active-exploitation/ url
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20090 url
- https://nvd.nist.gov/vuln/detail/CVE-2021-20090 advisory
- https://www.secpod.com/blog/arcadyan-based-routers-and-modems-under-active-exploitation url