Improper authentication in Buffalo WSR-2533DHPL2, Buffalo WSR-2533DHP3
Priority MEDIUM 44CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly restrict access to sensitive information from an unauthorized actor.
Why it matters now
EPSS 0.0817 94th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Buffalo WSR-2533DHPL2, Buffalo WSR-2533DHP3 | WSR-2533DHPL2 <=1.02, WSR-2533DHP3 <= 1.24 | — | No fix listed | CNA |
- Buffalo WSR-2533DHPL2, Buffalo WSR-2533DHP3 Vendor— Affected WSR-2533DHPL2 <=1.02, WSR-2533DHP3 <= 1.24 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:buffalo:wsr-2533dhpl2-bk_firmware:*:*:*:*:*:*:*:* | up to 1.02 | Vulnerable | BUFFALO INC. |
| cpe:2.3:h:buffalo:wsr-2533dhpl2-bk:-:*:*:*:*:*:*:* | not specified by NVD | Running on | BUFFALO INC. |
| cpe:2.3:o:buffalo:wsr-2533dhp3-bk_firmware:*:*:*:*:*:*:*:* | up to 1.24 | Vulnerable | BUFFALO INC. |
| cpe:2.3:h:buffalo:wsr-2533dhp3-bk:-:*:*:*:*:*:*:* | not specified by NVD | Running on | BUFFALO INC. |
- cpe:2.3:o:buffalo:wsr-2533dhpl2-bk_firmware:*:*:*:*:*:*:*:* Versions up to 1.02 Vulnerable ·BUFFALO INC.
- cpe:2.3:h:buffalo:wsr-2533dhpl2-bk:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·BUFFALO INC.
- cpe:2.3:o:buffalo:wsr-2533dhp3-bk_firmware:*:*:*:*:*:*:*:* Versions up to 1.24 Vulnerable ·BUFFALO INC.
- cpe:2.3:h:buffalo:wsr-2533dhp3-bk:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·BUFFALO INC.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20092
- 2026-10-03 Alias added: GHSA-cvhf-3qg2-vgjx
References
More BUFFALO INC. Wsr-2533dhp3-bk Firmware vulnerabilities
- TI-2021-03393 Path traversal in Buffalo WSR-2533DHPL2, Buffalo WSR-2533DHP3 KEVCVSS 3.1CRITICAL 9.8
- TI-2021-03394 The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3… CVSS 3.1HIGH 8.8
Sources
- CVE-2021-20092 · CVE Program
- CVE-2021-20092 · NVD
- FIRST EPSS
- GHSA-cvhf-3qg2-vgjx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences