DrayTek Vigor2960 1.5.1.6 Revision 8218 CGI Process mainfunction.cgi set_table sectiontype command injection

Summaryinfo

A vulnerability was found in DrayTek Vigor2960 1.5.1.6 Revision 8218. It has been classified as very critical. Affected by this issue is the function set_table of the file /cgi-bin/mainfunction.cgi of the component CGI Process. This manipulation of the argument sectiontype causes command injection. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is registered as CVE-2026-113389. Remote exploitation of the attack is possible. Furthermore, an exploit is available. 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 declared as very critical. Affected by this vulnerability is the function set_table of the file /cgi-bin/mainfunction.cgi of the component CGI Process. The manipulation of the argument sectiontype with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-113389. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/20/2026). MITRE ATT&CK project uses the attack technique T1202 for this issue.

It is possible to download the exploit 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.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-104968). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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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Threat Intelligenceinfo

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Submitinfo

Accepted

• Submit #992223: DrayTek Vigor2960 Vigor2960 1.5.1.6 (revision 8218) Authenticated set_table JSONData Command Injection (by eqqie)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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