{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-9385/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":9.8,"id":"CVE-2026-9385"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["A8000RU 7.1cu.643_b20200521"],"_cs_severities":["critical"],"_cs_tags":["cve","cve-2026-9385","command injection","rce","totolink","router"],"_cs_type":"threat","_cs_vendors":["Totolink"],"content_html":"\u003cp\u003eA command injection vulnerability, identified as CVE-2026-9385, has been discovered in Totolink A8000RU router version 7.1cu.643_b20200521. This vulnerability resides in the \u003ccode\u003esetTracerouteCfg\u003c/code\u003e function within the \u003ccode\u003e/cgi-bin/cstecgi.cgi\u003c/code\u003e file, which is part of the device's web management interface. The vulnerability allows a remote, unauthenticated attacker to inject arbitrary operating system commands by manipulating the \u003ccode\u003ecommand\u003c/code\u003e argument. Public exploits are available, increasing the risk of widespread exploitation. This poses a significant threat to network security as successful exploitation could lead to complete compromise of the affected device and potentially the network it serves.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn unauthenticated attacker identifies a Totolink A8000RU router running firmware version 7.1cu.643_b20200521.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious HTTP request targeting the \u003ccode\u003e/cgi-bin/cstecgi.cgi\u003c/code\u003e endpoint.\u003c/li\u003e\n\u003cli\u003eWithin the HTTP request, the attacker injects OS commands into the \u003ccode\u003ecommand\u003c/code\u003e argument of the \u003ccode\u003esetTracerouteCfg\u003c/code\u003e function.\u003c/li\u003e\n\u003cli\u003eThe web server processes the request and executes the injected OS command.\u003c/li\u003e\n\u003cli\u003eThe attacker gains initial access to the router's operating system.\u003c/li\u003e\n\u003cli\u003eThe attacker may then leverage this access to download and execute further malicious payloads.\u003c/li\u003e\n\u003cli\u003eThe attacker could establish persistence by modifying system configuration files.\u003c/li\u003e\n\u003cli\u003eFinally, the attacker achieves complete control of the router, potentially using it as a pivot point for further network attacks, data exfiltration, or denial-of-service attacks.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability (CVE-2026-9385) grants the attacker complete control over the affected Totolink A8000RU router. This can lead to a variety of malicious outcomes, including unauthorized access to the network, data theft, denial-of-service attacks, and the use of the compromised router as a botnet node. Given the publicly available exploit, a large number of devices are potentially at risk.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDeploy the Sigma rule \u003ccode\u003eDetect CVE-2026-9385 Exploitation Attempt via Command Injection\u003c/code\u003e to identify exploitation attempts against the \u003ccode\u003esetTracerouteCfg\u003c/code\u003e function in web server logs.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule \u003ccode\u003eDetect CVE-2026-9385 Post-Exploitation - Suspicious Process Execution\u003c/code\u003e to detect post-exploitation activity such as reverse shells or unauthorized software installation.\u003c/li\u003e\n\u003cli\u003eMonitor network traffic for unusual outbound connections originating from Totolink A8000RU devices.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-26T13:56:28Z","date_published":"2026-05-26T13:56:28Z","id":"https://feed.craftedsignal.io/briefs/2026-05-24-totolink-rce/","summary":"A remote command injection vulnerability (CVE-2026-9385) exists in the setTracerouteCfg function of the web management interface in Totolink A8000RU 7.1cu.643_b20200521, allowing unauthenticated attackers to execute arbitrary commands on the device.","title":"Totolink A8000RU Command Injection Vulnerability (CVE-2026-9385)","url":"https://feed.craftedsignal.io/briefs/2026-05-24-totolink-rce/"}],"language":"en","title":"CraftedSignal Threat Feed - Cve-2026-9385","version":"https://jsonfeed.org/version/1.1"}