DrayTek Vigor2960 1.5.1.6 Revision 8218 CGI Interface mainfunction.cgi sub_182B0 usefile/usescript/option os command injection

Summaryinfo

A vulnerability was found in DrayTek Vigor2960 1.5.1.6 Revision 8218. It has been declared as very critical. This affects the function sub_182B0 of the file /cgi-bin/mainfunction.cgi of the component CGI Interface. Such manipulation of the argument usefile/usescript/option leads to os command injection. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is documented as CVE-2026-113390. The attack can be executed remotely. Additionally, an exploit exists. The vendor explains: "2960 1.5.1.7 has corrected many security issues. And 2960 is EoS with limited support, only major issues would be reviewed(e.g. unauthenticated vuln.)".

Detailsinfo

A vulnerability was found in DrayTek Vigor2960 1.5.1.6 Revision 8218. It has been rated as very critical. Affected by this issue is the function sub_182B0 of the file /cgi-bin/mainfunction.cgi of the component CGI Interface. The manipulation of the argument usefile/usescript/option with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-113390. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/20/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

The exploit is available at github.com. It is declared as proof-of-concept. The vendor explains: "2960 1.5.1.7 has corrected many security issues. And 2960 is EoS with limited support, only major issues would be reviewed(e.g. unauthenticated vuln.)".

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Router Operating System

Vendor

• DrayTek

Name

• Vigor2960

Version

• 1.5.1.6 Revision 8218

License

• commercial

Support

• end of life

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Exploitinginfo

Threat Intelligenceinfo

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Submitinfo

Accepted

• Submit #992224: DrayTek Vigor2960 Vigor2960 1.5.1.6 (revision 8218) Authenticated jsonstatus File Operations and Multi-Sink Command (by eqqie)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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