OS command injection in BUFFALO INC. WXR-5700AX7S
Priority LOW 33CWE-78Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-78.
Summary
OS command injection vulnerability in Buffalo network devices allows a network-adjacent attacker with an administrative privilege to execute an arbitrary OS command if a specially crafted request is sent to a specific CGI program.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00772 55th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| BUFFALO INC. | WXR-5700AX7S | firmware Ver. 1.27 and earlier | — | No fix listed | CNA |
| BUFFALO INC. | WXR-5700AX7B | firmware Ver. 1.27 and earlier | — | No fix listed | CNA |
| BUFFALO INC. | WSR-3200AX4S | firmware Ver. 1.26 and earlier | — | No fix listed | CNA |
| BUFFALO INC. | WSR-3200AX4B | firmware Ver. 1.25 | — | No fix listed | CNA |
| BUFFALO INC. | WSR-2533DHP2 | firmware Ver. 1.22 and earlier | — | No fix listed | CNA |
| BUFFALO INC. | WSR-A2533DHP2 | firmware Ver. 1.22 and earlier | — | No fix listed | CNA |
| BUFFALO INC. | WSR-2533DHP3 | firmware Ver. 1.26 and earlier | — | No fix listed | CNA |
| BUFFALO INC. | WSR-A2533DHP3 | firmware Ver. 1.26 and earlier | — | No fix listed | CNA |
| BUFFALO INC. | WSR-2533DHPL2 | firmware Ver. 1.03 and earlier | — | No fix listed | CNA |
| BUFFALO INC. | WSR-2533DHPLS | firmware Ver. 1.07 and earlier | — | No fix listed | CNA |
| BUFFALO INC. | WSR-2533DHPLB | firmware Ver. 1.05 | — | No fix listed | CNA |
| BUFFALO INC. | WEX-1800AX4 | firmware Ver. 1.13 and earlier | — | No fix listed | CNA |
| BUFFALO INC. | WEX-1800AX4EA | firmware Ver. 1.13 and earlier | — | No fix listed | CNA |
- WXR-5700AX7S VendorBUFFALO INC. Affected firmware Ver. 1.27 and earlier Fixed in — No fix listed CNA
- WXR-5700AX7B VendorBUFFALO INC. Affected firmware Ver. 1.27 and earlier Fixed in — No fix listed CNA
- WSR-3200AX4S VendorBUFFALO INC. Affected firmware Ver. 1.26 and earlier Fixed in — No fix listed CNA
- WSR-3200AX4B VendorBUFFALO INC. Affected firmware Ver. 1.25 Fixed in — No fix listed CNA
- WSR-2533DHP2 VendorBUFFALO INC. Affected firmware Ver. 1.22 and earlier Fixed in — No fix listed CNA
- WSR-A2533DHP2 VendorBUFFALO INC. Affected firmware Ver. 1.22 and earlier Fixed in — No fix listed CNA
- WSR-2533DHP3 VendorBUFFALO INC. Affected firmware Ver. 1.26 and earlier Fixed in — No fix listed CNA
- WSR-A2533DHP3 VendorBUFFALO INC. Affected firmware Ver. 1.26 and earlier Fixed in — No fix listed CNA
- WSR-2533DHPL2 VendorBUFFALO INC. Affected firmware Ver. 1.03 and earlier Fixed in — No fix listed CNA
- WSR-2533DHPLS VendorBUFFALO INC. Affected firmware Ver. 1.07 and earlier Fixed in — No fix listed CNA
- WSR-2533DHPLB VendorBUFFALO INC. Affected firmware Ver. 1.05 Fixed in — No fix listed CNA
- WEX-1800AX4 VendorBUFFALO INC. Affected firmware Ver. 1.13 and earlier Fixed in — No fix listed CNA
- WEX-1800AX4EA VendorBUFFALO INC. Affected firmware Ver. 1.13 and earlier Fixed in — No fix listed CNA
CPE configurations NVD · 20
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:buffalo:wsr-3200ax4s_firmware:*:*:*:*:*:*:*:* | up to 1.26 | Vulnerable | BUFFALO INC. |
| cpe:2.3:h:buffalo:wsr-3200ax4s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | BUFFALO INC. |
| cpe:2.3:o:buffalo:wsr-3200ax4b_firmware:1.25:*:*:*:*:*:*:* | 1.25 | Vulnerable | BUFFALO INC. |
| cpe:2.3:h:buffalo:wsr-3200ax4b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | BUFFALO INC. |
| cpe:2.3:o:buffalo:wsr-2533dhp2_firmware:*:*:*:*:*:*:*:* | up to 1.22 | Vulnerable | BUFFALO INC. |
| cpe:2.3:h:buffalo:wsr-2533dhp2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | BUFFALO INC. |
| cpe:2.3:o:buffalo:wsr-a2533dhp2_firmware:*:*:*:*:*:*:*:* | up to 1.22 | Vulnerable | BUFFALO INC. |
| cpe:2.3:h:buffalo:wsr-a2533dhp2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | BUFFALO INC. |
| cpe:2.3:o:buffalo:wsr-2533dhp3_firmware:*:*:*:*:*:*:*:* | up to 1.26 | Vulnerable | BUFFALO INC. |
| cpe:2.3:h:buffalo:wsr-2533dhp3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | BUFFALO INC. |
- cpe:2.3:o:buffalo:wsr-3200ax4s_firmware:*:*:*:*:*:*:*:* Versions up to 1.26 Vulnerable ·BUFFALO INC.
- cpe:2.3:h:buffalo:wsr-3200ax4s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·BUFFALO INC.
- cpe:2.3:o:buffalo:wsr-3200ax4b_firmware:1.25:*:*:*:*:*:*:* Versions 1.25 Vulnerable ·BUFFALO INC.
- cpe:2.3:h:buffalo:wsr-3200ax4b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·BUFFALO INC.
- cpe:2.3:o:buffalo:wsr-2533dhp2_firmware:*:*:*:*:*:*:*:* Versions up to 1.22 Vulnerable ·BUFFALO INC.
- cpe:2.3:h:buffalo:wsr-2533dhp2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·BUFFALO INC.
- cpe:2.3:o:buffalo:wsr-a2533dhp2_firmware:*:*:*:*:*:*:*:* Versions up to 1.22 Vulnerable ·BUFFALO INC.
- cpe:2.3:h:buffalo:wsr-a2533dhp2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·BUFFALO INC.
- cpe:2.3:o:buffalo:wsr-2533dhp3_firmware:*:*:*:*:*:*:*:* Versions up to 1.26 Vulnerable ·BUFFALO INC.
- cpe:2.3:h:buffalo:wsr-2533dhp3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·BUFFALO INC.
Show 10 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:buffalo:wsr-a2533dhp3_firmware:*:*:*:*:*:*:*:* | up to 1.26 | Vulnerable | BUFFALO INC. |
| cpe:2.3:h:buffalo:wsr-a2533dhp3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | BUFFALO INC. |
| cpe:2.3:o:buffalo:wsr-2533dhpl2_firmware:*:*:*:*:*:*:*:* | up to 1.03 | Vulnerable | BUFFALO INC. |
| cpe:2.3:h:buffalo:wsr-2533dhpl2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | BUFFALO INC. |
| cpe:2.3:o:buffalo:wsr-2533dhpls_firmware:*:*:*:*:*:*:*:* | up to 1.07 | Vulnerable | BUFFALO INC. |
| cpe:2.3:h:buffalo:wsr-2533dhpls:-:*:*:*:*:*:*:* | not specified by NVD | Running on | BUFFALO INC. |
| cpe:2.3:o:buffalo:wex-1800ax4_firmware:*:*:*:*:*:*:*:* | up to 1.13 | Vulnerable | BUFFALO INC. |
| cpe:2.3:h:buffalo:wex-1800ax4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | BUFFALO INC. |
| cpe:2.3:o:buffalo:wex-1800ax4ea_firmware:*:*:*:*:*:*:*:* | up to 1.13 | Vulnerable | BUFFALO INC. |
| cpe:2.3:h:buffalo:wex-1800ax4ea:-:*:*:*:*:*:*:* | not specified by NVD | Running on | BUFFALO INC. |
- cpe:2.3:o:buffalo:wsr-a2533dhp3_firmware:*:*:*:*:*:*:*:* Versions up to 1.26 Vulnerable ·BUFFALO INC.
- cpe:2.3:h:buffalo:wsr-a2533dhp3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·BUFFALO INC.
- cpe:2.3:o:buffalo:wsr-2533dhpl2_firmware:*:*:*:*:*:*:*:* Versions up to 1.03 Vulnerable ·BUFFALO INC.
- cpe:2.3:h:buffalo:wsr-2533dhpl2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·BUFFALO INC.
- cpe:2.3:o:buffalo:wsr-2533dhpls_firmware:*:*:*:*:*:*:*:* Versions up to 1.07 Vulnerable ·BUFFALO INC.
- cpe:2.3:h:buffalo:wsr-2533dhpls:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·BUFFALO INC.
- cpe:2.3:o:buffalo:wex-1800ax4_firmware:*:*:*:*:*:*:*:* Versions up to 1.13 Vulnerable ·BUFFALO INC.
- cpe:2.3:h:buffalo:wex-1800ax4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·BUFFALO INC.
- cpe:2.3:o:buffalo:wex-1800ax4ea_firmware:*:*:*:*:*:*:*:* Versions up to 1.13 Vulnerable ·BUFFALO INC.
- cpe:2.3:h:buffalo:wex-1800ax4ea:-:*:*:*:*:*:*:* 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-2022-43466
- 2026-10-03 Alias added: GHSA-vqc2-jf89-w6m6
References
More BUFFALO INC. Wex-1800ax4 Firmware vulnerabilities
- TI-2022-21276 Code injection in BUFFALO INC. WXR-5700AX7S CVSS 3.1MEDIUM 6.8
Sources
- CVE-2022-43466 · CVE Program
- CVE-2022-43466 · NVD
- FIRST EPSS
- GHSA-vqc2-jf89-w6m6 · 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