CVE-2026-2823 - Vulnerability Details

- Comfast CF-E7 webmggnt mbox-config sub_41ACCC command injection

Description

A vulnerability was detected in Comfast CF-E7 2.6.0.9. The impacted element is the function sub_41ACCC of the file /cgi-bin/mbox-config?method=SET&section=ntp_timezone of the component webmggnt. Performing a manipulation of the argument timestr results in command injection. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Published: 2026-02-20

Score: 5.3 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

The vulnerability resides in the sub_41ACCC function within the webmggnt component of Comfast CF‑E7. By manipulating the timestr argument to /cgi-bin/mbox-config?method=SET&section=ntp_timezone, an attacker can inject arbitrary shell commands. The resulting command injection allows remote execution of code with the privileges of the webmggnt process, effectively compromising the router.

Affected Systems

Affected devices are Comfast CF‑E7 routers running firmware version 2.6.0.9. No other firmware versions are specifically listed as vulnerable, but any device with the same webmggnt component unpatched may also be at risk.

Risk and Exploitability

The CVSS score of 5.3 indicates medium severity, and the EPSS score is below 1%, suggesting a low likelihood of exploitation at present. The vulnerability is not listed in the KEV catalog, but public exploits are available and may be used. An attacker can trigger it remotely over the Internet by sending a crafted HTTP request. If exploited, the router could be controlled, leading to network compromise or further attacks.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Comfast

CF-E7

affected

Version	Status	Constraints
`2.6.0.9`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:comfast:cf-e7_firmware:2.6.0.9:*:*:*:*:*:*:*

cpe:2.3:h:comfast:cf-e7:-:*:*:*:*:*:*:*

No data.

Vendor Product Confidence Versions

Comfast

Cf-e7

100%

Version	Status	Scheme	Platform
`2.6.0.9`	affected	generic	—

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Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Apply the latest firmware from Comfast that addresses the command injection in webmggnt, or upgrade to a version that removes the vulnerable sub_41ACCC function.
Restrict external access to the router’s web management interface by placing the device behind a firewall, limiting the IP range that can reach /cgi-bin/mbox-config, or disabling the interface entirely when not needed.
Monitor inbound HTTP traffic to the router for anomalous request patterns or unexpected command strings, and enable logging to detect potential abuse of the injection vector.

Generated by OpenCVE AI on April 18, 2026 at 11:34 UTC.

Tracking

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Advisories

No advisories yet.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00073.

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/jinhao118/cve/blob/main/ComFast%20Router_3.md
https://vuldb.com/?ctiid.346948
https://vuldb.com/?id.346948
https://vuldb.com/?submit.753871

History

Mon, 23 Feb 2026 10:45:00 +0000

Type	Values Removed	Values Added
CPEs		cpe:2.3:o:comfast:cf-e7_firmware::::::::

Fri, 20 Feb 2026 19:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Comfast cf-e7 Firmware
CPEs		cpe:2.3:h:comfast:cf-e7:-:::::::* cpe:2.3:o:comfast:cf-e7_firmware:2.6.0.9:::::::*
Vendors & Products		Comfast cf-e7 Firmware

Fri, 20 Feb 2026 16:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 20 Feb 2026 10:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Comfast Comfast cf-e7
Vendors & Products		Comfast Comfast cf-e7

Fri, 20 Feb 2026 05:15:00 +0000

Type	Values Removed	Values Added
Description		A vulnerability was detected in Comfast CF-E7 2.6.0.9. The impacted element is the function sub_41ACCC of the file /cgi-bin/mbox-config?method=SET&section=ntp_timezone of the component webmggnt. Performing a manipulation of the argument timestr results in command injection. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Title		Comfast CF-E7 webmggnt mbox-config sub_41ACCC command injection
Weaknesses		CWE-74 CWE-77
References		https://github.com/jinhao118/cve/blob/main/ComFast%20Router_3.md https://vuldb.com/?ctiid.346948 https://vuldb.com/?id.346948 https://vuldb.com/?submit.753871
Metrics		cvssV2_0 `{'score': 6.5, 'vector': 'AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}` cvssV3_0 `{'score': 6.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV3_1 `{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV4_0 `{'score': 5.3, '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'}`

Subscriptions

Comfast Cf-e7 Cf-e7 Firmware

MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-02-20T05:02:06.940Z

Updated: 2026-02-23T10:30:48.632Z

Reserved: 2026-02-19T17:22:19.708Z

Link: CVE-2026-2823

Vulnrichment

Updated: 2026-02-20T14:53:10.252Z

NVD

Status : Analyzed

Published: 2026-02-20T05:17:53.923

Modified: 2026-04-29T01:00:01.613

Link: CVE-2026-2823

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-04-18T11:45:44Z

Weaknesses

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

Exploitation poc

Automatable no

Technical Impact partial

Subscriptions

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