CVE-2026-113396 Details
Description
A weakness has been identified in DrayTek Vigor2960 1.5.1.6 Revision 8218. The impacted element is the function rename_table of the file /cgi-bin/mainfunction.cgi of the component Rename Table Handler. This manipulation of the argument newtable causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 1.5.1.7 is sufficient to resolve this issue. It is suggested to upgrade the affected component. 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.)". This vulnerability only affects products that are no longer supported by the maintainer.
A command injection vulnerability has been identified in the DrayTek Vigor2960 router, specifically in firmware version 1.5.1.6 Revision 8218. The issue arises in the Rename Table Handler within the function rename_table, located in the file /cgi-bin/mainfunction.cgi. This vulnerability allows authenticated attackers to execute arbitrary commands on the device by manipulating the newtable argument. The exploitation can be initiated remotely, and a proof-of-concept exploit is publicly available.
Users are advised to upgrade to DrayTek Vigor2960 firmware version 1.5.1.7, which addresses this vulnerability. For future reference, it is recommended to use the UCI library for section renaming instead of creating shell command strings that could be manipulated. Additionally, enforce strict allowlists and length limits for identifiers used in such commands.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 20, 2026CISA-ADP
Assessed Oct 20, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://fw.draytek.com.tw/Vigor2960/Firmware/v1.5.1.7/Vigor2960_v1.5.1.7.zip | [email protected] | Broken LinkVendor |
| https://github.com/yikesoftware/DrayTek_Vigor2960_Security_Analysis/tree/main/cases/DRV2960-0013-authenticated-rename-table-command-injection | [email protected] | ExploitTechnical Analysis |
| https://vuldb.com/cve/CVE-2026-113396 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/992249 | [email protected] | Permission Required |
| https://vuldb.com/vuln/422672 | [email protected] | AdvisoryContent Wall |
| https://vuldb.com/vuln/422672/cti | [email protected] | AdvisoryContent Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| DrayTek Vigor2960 | 1.5.1.6 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 20, 2026 | CVE Modified | CISA-ADP |
| Oct 20, 2026 | New CVE Received | [email protected] |