{"id":"CVE-2026-113391","published":"2026-10-20T13:16:40.640","lastModified":"2026-10-20T19:27:34.430","description":"A vulnerability has been found in DrayTek Vigor2960 1.5.1.6 Revision 8218. This affects the function uploadlangs of the file /cgi-bin/mainfunction.cgi of the component Upload Endpoint. Such manipulation leads to command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.5.1.7 is able to mitigate this issue. It is recommended 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.","cvssScore":9.9,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cwes":["CWE-74","CWE-77"],"vendors":[],"products":[],"references":[{"url":"https://fw.draytek.com.tw/Vigor2960/Firmware/v1.5.1.7/Vigor2960_v1.5.1.7.zip","tags":[]},{"url":"https://github.com/yikesoftware/DrayTek_Vigor2960_Security_Analysis/tree/main/cases/DRV2960-0008-authenticated-upload-filename-command-injection","tags":[]},{"url":"https://vuldb.com/cve/CVE-2026-113391","tags":[]},{"url":"https://vuldb.com/submit/992244","tags":[]},{"url":"https://vuldb.com/vuln/422667","tags":[]},{"url":"https://vuldb.com/vuln/422667/cti","tags":[]}],"exploitRefs":[{"url":"https://github.com/yikesoftware/DrayTek_Vigor2960_Security_Analysis/tree/main/cases/DRV2960-0008-authenticated-upload-filename-command-injection","tags":[]}],"hasPoc":true,"ai":{"summary":"A command injection vulnerability exists in DrayTek Vigor2960 routers in the uploadlangs function of /cgi-bin/mainfunction.cgi, allowing remote attackers with low privileges to execute arbitrary commands on the device. This critical flaw affects unsupported products and can lead to complete device compromise.","exploitability":"The vulnerability is easily exploitable with minimal preconditions, requiring only a network connection to the affected router's web interface and authentication credentials.","blast_radius":"If exploited, this vulnerability could allow attackers to gain full control of the router, potentially leading to network infiltration, data exfiltration, or as a pivot point for attacks on other network devices.","remediation":"Upgrade to version 1.5.1.7 immediately, as this is the specific fixed version mentioned in the vendor advisory for the DrayTek Vigor2960 router.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","web","network","router"],"model":"garnet-coder","analyzedAt":"2026-10-21T01:19:21.222Z"}}