CVE-2026-2824
Published: 20 February 2026
Summary
CVE-2026-2824 is a medium-severity Injection (CWE-74) vulnerability in Comfast Cf-E7 Firmware. Its CVSS base score is 6.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 21.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Developer assessments and testing (including injection-focused techniques) identify improper neutralization of special elements, and the verifiable flaw remediation corrects them pre-deployment.
Identifies indicators of injection attacks (command, SQL, LDAP, etc.) via anomaly and attack monitoring.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Command injection in exposed router web CGI endpoint (ping_config) directly enables remote exploitation of public-facing apps (T1190) and arbitrary Unix shell command execution (T1059.004).
NVD Description
A flaw has been found in Comfast CF-E7 2.6.0.9. This affects the function sub_441CF4 of the file /cgi-bin/mbox-config?method=SET§ion=ping_config of the component webmggnt. Executing a manipulation of the argument destination can lead to command injection. The attack may be performed from…
more
remote. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Deeper analysisAI
CVE-2026-2824 is a command injection vulnerability affecting the Comfast CF-E7 router firmware version 2.6.0.9. The issue exists in the sub_441CF4 function of the /cgi-bin/mbox-config?method=SET§ion=ping_config endpoint within the webmggnt component, where manipulation of the destination argument enables command injection.
The vulnerability is remotely exploitable over the network by an attacker possessing low privileges, requiring no user interaction. Exploitation allows limited impacts on confidentiality, integrity, and availability, as reflected in its CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L). It maps to CWE-74 (Improper Neutralization of Special Elements) and CWE-77 (Command Injection).
Advisories from VulDB and related submissions note that the vendor was contacted early about the disclosure but provided no response, with no patches mentioned. An exploit has been published, including on GitHub at https://github.com/jinhao118/cve/blob/main/ComFast%20Router_4.md, and may be used by attackers.
The vulnerability was published on 2026-02-20, and its public exploit availability heightens risk for exposed Comfast CF-E7 devices.
Details
- CWE(s)