{"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-2026-6132/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-2026-6132"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":[],"_cs_severities":["critical"],"_cs_tags":["command-injection","router","totolink","cve-2026-6132"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eA command injection vulnerability exists in Totolink A7100RU router with firmware version 7.4cu.2313_b20191024. The vulnerability resides within the CGI handler component, specifically in the \u003ccode\u003e/cgi-bin/cstecgi.cgi\u003c/code\u003e file's \u003ccode\u003esetLedCfg\u003c/code\u003e function. By manipulating the \u003ccode\u003eenable\u003c/code\u003e argument, an attacker can inject and execute arbitrary operating system commands on the affected device. This vulnerability is remotely exploitable without authentication and has a publicly available exploit, making it a critical risk for users of the specified Totolink A7100RU firmware. This allows attackers to potentially gain complete control of the router.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker identifies a vulnerable Totolink A7100RU router running firmware 7.4cu.2313_b20191024.\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\u003eThe attacker injects an OS command into the \u003ccode\u003eenable\u003c/code\u003e argument of the \u003ccode\u003esetLedCfg\u003c/code\u003e function within the CGI request. For example, \u003ccode\u003eenable=;reboot;\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eThe webserver processes the CGI request and passes the attacker-controlled \u003ccode\u003eenable\u003c/code\u003e argument to the \u003ccode\u003esetLedCfg\u003c/code\u003e function without proper sanitization.\u003c/li\u003e\n\u003cli\u003eThe injected OS command is executed with the privileges of the web server process.\u003c/li\u003e\n\u003cli\u003eThe attacker achieves arbitrary code execution on the router's operating system.\u003c/li\u003e\n\u003cli\u003eDepending on the injected command, the attacker can modify router settings, exfiltrate sensitive information, install malware, or cause a denial-of-service condition.\u003c/li\u003e\n\u003cli\u003eThe attacker may use the compromised router as a pivot point for further attacks within the local network or to participate in botnet activities.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability allows an attacker to execute arbitrary commands on the affected Totolink A7100RU router. This could lead to complete compromise of the device, allowing the attacker to modify router configurations, intercept network traffic, or use the router as part of a botnet. Given the wide use of these routers in home and small business networks, a large number of devices could be vulnerable if left unpatched. The CVSS v3.1 score of 9.8 highlights the critical severity of this vulnerability.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMonitor web server logs for requests to \u003ccode\u003e/cgi-bin/cstecgi.cgi\u003c/code\u003e containing suspicious characters or command sequences within the \u003ccode\u003eenable\u003c/code\u003e parameter to detect exploitation attempts (see Sigma rule \u003ccode\u003eDetect Totolink A7100RU Command Injection Attempt\u003c/code\u003e).\u003c/li\u003e\n\u003cli\u003eApply available firmware updates from Totolink to patch CVE-2026-6132 if available.\u003c/li\u003e\n\u003cli\u003eImplement web application firewall (WAF) rules to filter out malicious requests targeting \u003ccode\u003e/cgi-bin/cstecgi.cgi\u003c/code\u003e and the \u003ccode\u003eenable\u003c/code\u003e parameter.\u003c/li\u003e\n\u003cli\u003eDisable remote administration access to the router to reduce the attack surface.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-12T23:16:25Z","date_published":"2026-04-12T23:16:25Z","id":"https://feed.craftedsignal.io/briefs/2026-04-12-totolink-command-injection/","summary":"Totolink A7100RU version 7.4cu.2313_b20191024 is vulnerable to command injection due to improper neutralization of special elements within the setLedCfg function in the /cgi-bin/cstecgi.cgi file, allowing a remote attacker to execute arbitrary commands.","title":"Totolink A7100RU Command Injection Vulnerability","url":"https://feed.craftedsignal.io/briefs/2026-04-12-totolink-command-injection/"}],"language":"en","title":"CraftedSignal Threat Feed - Cve-2026-6132","version":"https://jsonfeed.org/version/1.1"}