CVE-2026-12814
Comfast CF-WR631AX V3 API Endpoint mbox-config system os command injection
Description
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.
INFO
Published Date :
June 21, 2026, 11:16 p.m.
Last Modified :
June 22, 2026, 6:24 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Update Comfast CF-WR631AX V3 to the latest firmware version.
- Validate and sanitize all user inputs to the API endpoint.
- Implement input validation on the 'destination' argument.
- Restrict access to the API endpoint if possible.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-12814.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-12814 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-12814
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-12814 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-12814 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 22, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-12814', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-22T12:07:44.637772Z'} -
New CVE Received by [email protected]
Jun. 21, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:comfast:cf-wr631ax_v3:*:*:*:*:*:*:*:*'], 'vendor': 'Comfast', 'modules': ['API Endpoint'], 'product': 'CF-WR631AX V3', 'versions': [{'status': 'affected', 'version': '2.7.0.0'}, {'status': 'affected', 'version': '2.7.0.1'}, {'status': 'affected', 'version': '2.7.0.2'}, {'status': 'affected', 'version': '2.7.0.3'}, {'status': 'affected', 'version': '2.7.0.4'}, {'status': 'affected', 'version': '2.7.0.5'}, {'status': 'affected', 'version': '2.7.0.6'}, {'status': 'affected', 'version': '2.7.0.7'}, {'status': 'affected', 'version': '2.7.0.8'}]}] Added Description 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Added CVSS V2 (AV:N/AC:L/Au:S/C:P/I:P/A:P) Added CWE CWE-78 Added CWE CWE-77 Added Reference https://github.com/0xcc12138/COMFAST-CF-WR631AX-Router-Backend-Command-Injection-RCE-Analysis-Report Added Reference https://vuldb.com/cve/CVE-2026-12814 Added Reference https://vuldb.com/submit/837561 Added Reference https://vuldb.com/vuln/372608 Added Reference https://vuldb.com/vuln/372608/cti