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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.

PUBLISHED Reserved 2026-06-21 | Published 2026-06-21 | Updated 2026-06-22 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

OS Command Injection

Command Injection

Product status

2.7.0.0
affected

2.7.0.1
affected

2.7.0.2
affected

2.7.0.3
affected

2.7.0.4
affected

2.7.0.5
affected

2.7.0.6
affected

2.7.0.7
affected

2.7.0.8
affected

Timeline

2026-06-21:Advisory disclosed
2026-06-21:VulDB entry created
2026-06-21:VulDB entry last update

Credits

0xcc12138 (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/372608 (VDB-372608 | Comfast CF-WR631AX V3 API Endpoint mbox-config system os command injection) vdb-entry technical-description

vuldb.com/vuln/372608/cti (VDB-372608 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-12814 (CVE-2026-12814 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/837561 (Submit #837561 | COMFAST CF-WR631AX V3-V2.7.0.8 OS Command Injection) third-party-advisory

github.com/...-Backend-Command-Injection-RCE-Analysis-Report exploit

cve.org (CVE-2026-12814)

nvd.nist.gov (CVE-2026-12814)

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