CVE-2026-129452
Deferred Deferred - Pending Action

Command Injection in DrayTek Vigor2960 Router

Publication date: 2026-11-15

Last updated on: 2026-11-15

Assigner: VulDB

Description
A vulnerability has been found in DrayTek Vigor2960 1.5.1.6. This vulnerability affects the function set_table of the file /cgi-bin/mainfunction.cgi. Such manipulation of the argument jsondata leads to command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.5.1.7 is able to resolve this issue. It is suggested to upgrade the affected component. The vendor recommends: "1.5.1.6 isn't the latest version of 2960, the latest version fixes many security issues. And we have another one in our release plan which should solve the issues reported."

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Meta Information

Published
2026-11-15
Last Modified
2026-11-15
Generated
2026-11-15
AI Q&A
2026-11-15
EPSS Evaluated
N/A
NVD
CVE-2026-129452
EUVD
EUVD-2026-126018

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
draytek vigor2960 to 1.5.1.6 (inc)
draytek vigor2960 From 1.5.1.7 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-74 The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
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.

Attack-Flow Graph

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Executive Summary

This is a command injection vulnerability in DrayTek Vigor2960 router firmware version 1.5.1.6. It affects the set_table function in /cgi-bin/mainfunction.cgi where the jsondata argument is manipulated to execute arbitrary shell commands. An attacker with admin access can inject commands via the config parameter, potentially gaining remote control of the device.

Detection Guidance

To detect this vulnerability, check if your DrayTek Vigor2960 router is running firmware version 1.5.1.6. Inspect network traffic for POST requests to /cgi-bin/mainfunction.cgi with the action=set_table parameter. Look for unusual command injection patterns in the jsondata[].config field.

Impact Analysis

If exploited, this flaw allows attackers to execute arbitrary commands on the router with the privileges of the web server. This could lead to full device compromise, network traffic interception, or use of the router as a pivot point for further attacks within the network.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating confidentiality requirements in GDPR and HIPAA. Compromised routers may expose protected health or personal information, resulting in regulatory penalties and loss of compliance certifications.

Mitigation Strategies

Immediately upgrade the firmware to version 1.5.1.7 or later. Ensure strict input validation for the jsondata[].config parameter. Avoid direct command interpolation in the set_table function. Use safe configuration methods like the UCI library.

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