CVE-2026-12814CWE-77CWE-78

Comfast CF-WR631AX V3 API Endpoint mbox-config system os command injection

Medium · published June 21, 2026

CVSS v4.0
5.3
EPSS
2%
Percentile
80.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS: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
EPSS
0.01986 · 80.4th percentile
Weaknesses
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection'); CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-06-21T22:45Z
EPSS history
Timeline
  • 21 JUN 22:45Z
    Comfast CF-WR631AX V3 API Endpoint mbox-config system os command injection
    cvelistv5