{"id":"CVE-2026-118579","published":"2026-10-28T23:17:09.940","lastModified":"2026-10-28T23:17:09.940","description":"A weakness has been identified in D-Link DIR-505 1.10B02. The impacted element is the function main of the file /secmark1524.cgi of the component Web Management CGI. This manipulation of the argument accu/pass/code/hash/cmds causes backdoor. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-912"],"vendors":[],"products":[],"references":[{"url":"https://github.com/Walnut1337/DIR-505_backdoor/tree/main/poc","tags":[]},{"url":"https://vuldb.com/cve/CVE-2026-118579","tags":[]},{"url":"https://vuldb.com/submit/1025351","tags":[]},{"url":"https://vuldb.com/vuln/428018","tags":[]},{"url":"https://vuldb.com/vuln/428018/cti","tags":[]},{"url":"https://www.dlink.com/","tags":[]}],"exploitRefs":[{"url":"https://github.com/Walnut1337/DIR-505_backdoor/tree/main/poc","tags":[]}],"hasPoc":true,"ai":{"summary":"The D-Link DIR-505 router's web management CGI (/secmark1524.cgi) contains a backdoor triggered by manipulation of arguments (accu/pass/code/hash/cmds), enabling remote code execution without authentication.","exploitability":"Exploitation is trivial as the vulnerability allows unauthenticated remote access and a public exploit exists.","blast_radius":"Successful exploitation grants full compromise of confidentiality, integrity, and availability of the device, potentially enabling complete network takeover for attackers.","remediation":"No fixed version is published by D-Link; disable the affected endpoint (/secmark1524.cgi) and restrict access to the web management interface via ACLs or network segmentation until a patch is available.","detection":"Look for HTTP POST requests to /secmark1524.cgi containing unexpected or malformed parameters (accu, pass, code, hash, cmds), especially from external IP addresses or non-admin users; unauthenticated access attempts to this endpoint are abnormal and highly suspicious.","tags":["rce","backdoor","web","unauth-access","embedded-devices"],"model":"garnet-coder","analyzedAt":"2026-10-29T08:42:25.181Z"}}