A flaw has been found in Comfast CF-N1-S 2.6.0.1. This impacts the function sprintf of the file /cgi-bin/mbox-config?method=SET&section=ptest_sn. Executing a manipulation of the argument sn can lead to command injection. The attack can be launched remotely. The exploit has been published and may be used.

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 Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact Low

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

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.

No EPSS score available.

Key SSVC decision points have not yet been added.

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-N1-S affected
Version Status Constraints
2.6.0.1 affected —

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Project Subscriptions

Vendors Products
Comfast Subscribe
Cf-n1-s Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/lxiansheng488-bit/-/blob/main/%E5%8E%82%E5%95%86comefast%20%20CF-N1-S%20V2.pdf cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-77004 cve-icon cve-icon
https://vuldb.com/submit/880584 cve-icon cve-icon
https://vuldb.com/vuln/393623 cve-icon cve-icon
https://vuldb.com/vuln/393623/cti cve-icon cve-icon
History

Thu, 20 Aug 2026 16:15:00 +0000

Type Values Removed Values Added
Description A flaw has been found in Comfast CF-N1-S 2.6.0.1. This impacts the function sprintf of the file /cgi-bin/mbox-config?method=SET&section=ptest_sn. Executing a manipulation of the argument sn can lead to command injection. The attack can be launched remotely. The exploit has been published and may be used.
Title Comfast CF-N1-S mbox-config sprintf command injection
First Time appeared Comfast
Comfast cf-n1-s
Weaknesses CWE-74
CWE-77
CPEs cpe:2.3:a:comfast:cf-n1-s:*:*:*:*:*:*:*:*
Vendors & Products Comfast
Comfast cf-n1-s
References
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': 7.4, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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:L/SI:L/SA:L/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-08-20T17:10:13.138Z

Reserved: 2026-08-20T07:31:59.383Z

Link: CVE-2026-77004

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-20T16:18:31.580

Modified: 2026-08-20T17:19:48.930

Link: CVE-2026-77004

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses