CVE-2021-20090
critical · 9.8Actively exploitedOn the CISA Known Exploited Vulnerabilities catalog
Apply updates per vendor instructions.
Added 2021-11-03Remediation due 2021-11-17
A public exploit / detection template exists
Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates →
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.
9.8
CVSS
100.0%
EPSS (exploit prob.)
100th
EPSS percentile
2021-04-29
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-22
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| buffalo | wsr-2533dhpl2-bk_firmware | <= 1.02 |
| buffalo | wsr-2533dhpl2-bk | all versions |
| buffalo | wsr-2533dhp3-bk_firmware | <= 1.24 |
| buffalo | wsr-2533dhp3-bk | all versions |
Check a specific version with /api/v1/cve/match.
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
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2021-20090