Comfast CF-WR631AX V3 API Endpoint mbox-config system os command injection
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.
Summary
A flaw has been found in Comfast CF-WR631AX V3 up to 2.7.0.8. This issue affects the function system of the file /cgi-bin/mbox-config?section=ping_config of the component API Endpoint. This manipulation of the argument destination causes os command injection. The attack is possible to be carried out remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
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 |
|---|---|---|---|---|---|
| Comfast | CF-WR631AX V3 | 2.7.0.0; 2.7.0.1; 2.7.0.2; 2.7.0.3; 2.7.0.4; 2.7.0.5; 2.7.0.6; 2.7.0.7; 2.7.0.8 | — | No fix listed | CNA |
- CF-WR631AX V3 VendorComfast Affected 2.7.0.0; 2.7.0.1; 2.7.0.2; 2.7.0.3; 2.7.0.4; 2.7.0.5; 2.7.0.6; 2.7.0.7; 2.7.0.8 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-12814
- 2026-10-03 Alias added: GHSA-fvx9-6cqj-p3f8
References
More Comfast vulnerabilities
- TI-2026-63261 Comfast CF-N1-S Web Management mbox-config get_css_path_from_uri stack-based overflow CVSS 4.0CRITICAL 10.0
- TI-2024-29900 COMFAST CF-XR11 V2.7.2 has a command injection vulnerability in function sub_424CB4. CVSS 3.1CRITICAL 9.8
- TI-2023-20142 COMFAST CF-XR11 V2.7.2 has a command injection vulnerability detected at function… CVSS 3.1CRITICAL 9.8
- TI-2023-20141 COMFAST CF-XR11 V2.7.2 has a command injection vulnerability detected at function… CVSS 3.1CRITICAL 9.8
- TI-2023-20140 An issue in COMFAST CF-XR11 v.2.7.2 allows an attacker to execute arbitrary code via the… CVSS 3.1CRITICAL 9.8
- TI-2023-20139 An issue in COMFAST CF-XR11 v.2.7.2 allows an attacker to execute arbitrary code via the… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-12814 · CVE Program
- CVE-2026-12814 · NVD
- FIRST EPSS
- GHSA-fvx9-6cqj-p3f8 · 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