CVE-2025-9581: cf-n1 Injection — Exploit

Description

A vulnerability was detected in Comfast CF-N1 2.6.0. This impacts the function multi_pppoe of the file /usr/bin/webmgnt. Performing manipulation of the argument phy_interface results in command injection. The attack may be initiated remotely. The exploit is now public and may be used.

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CVSS v3.1 Score

6.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-74 CWE-74

CWE-77 CWE-77

Affected Products

Vendor	Product	Versions
comfast	cf-n1_firmware	All
comfast	cf-n1	All

References

Exploits

https://github.com/ZZ2266/.github.io/tree/main/COMFAST/N1V2/multi_pppoe https://github.com/ZZ2266/.github.io/tree/main/COMFAST/N1V2/multi_pppoe

Other References

https://vuldb.com/?ctiid.321694 https://vuldb.com/?id.321694 https://vuldb.com/?submit.636127

Frequently Asked Questions

What is CVE-2025-9581? +

A vulnerability was detected in Comfast CF-N1 2.6.0. This impacts the function multi_pppoe of the file /usr/bin/webmgnt. Performing manipulation of the argument phy_interface results in command injection. The attack may be initiated remotely. The exploit is now public and may be used. It has a CVSS v3.1 base score of 6.3 (MEDIUM).

How severe is CVE-2025-9581? +

CVE-2025-9581 has a CVSS v3.1 score of 6.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-9581? +

CVE-2025-9581 affects products from comfast, specifically: cf-n1, cf-n1_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-9581? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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