{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/wax650s-firmware/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7.2,"id":"CVE-2026-6837"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["WAX650S firmware"],"_cs_severities":["high"],"_cs_tags":["cve","command-injection","zyxel","network-infrastructure"],"_cs_type":"advisory","_cs_vendors":["Zyxel"],"content_html":"\u003cp\u003eCVE-2026-6837 describes a post-authentication command injection vulnerability affecting the 'export-cgi' CGI program within Zyxel WAX650S access point firmware. The vulnerability exists in all firmware versions up to and including 7.10(ABRM.4)C0. An attacker who has already obtained legitimate administrative credentials for the web management interface can leverage this flaw to inject and execute arbitrary commands at the operating system level. Because this vulnerability requires existing administrative access, the primary risk involves privilege escalation or persistence for an attacker who has successfully performed initial credential compromise. Organizations utilizing these devices should prioritize upgrading to patched firmware versions and auditing active administrative sessions.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker performs credential theft or brute-force to obtain administrator-level access to the web management interface.\u003c/li\u003e\n\u003cli\u003eAttacker logs into the device management console via HTTP or HTTPS.\u003c/li\u003e\n\u003cli\u003eAttacker navigates to or directly crafts a request to the 'export-cgi' endpoint.\u003c/li\u003e\n\u003cli\u003eAttacker injects malicious OS command sequences into the request parameters processed by 'export-cgi'.\u003c/li\u003e\n\u003cli\u003eThe CGI program fails to neutralize shell metacharacters, passing the input directly to the system shell.\u003c/li\u003e\n\u003cli\u003eThe system executes the injected commands with the privileges of the web service process.\u003c/li\u003e\n\u003cli\u003eAttacker establishes persistent access or exfiltrates configuration data from the device.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation allows for full control of the affected Zyxel WAX650S access point. This can lead to total loss of device confidentiality, integrity, and availability, as well as the potential for the device to be used as a pivot point for further lateral movement within the network.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the vendor-provided firmware update that addresses CVE-2026-6837 on all Zyxel WAX650S units immediately.\u003c/li\u003e\n\u003cli\u003eAudit web server access logs for anomalous POST or GET requests directed at 'export-cgi' by known administrative accounts.\u003c/li\u003e\n\u003cli\u003eLimit access to the device management interface to specific internal management VLANs or dedicated jump hosts to minimize the exposure of administrative endpoints.\u003c/li\u003e\n\u003cli\u003eMonitor for unexpected system processes or network connections originating from the WAX650S device.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-08-04T03:43:32Z","date_published":"2026-08-04T03:43:32Z","id":"https://feed.craftedsignal.io/briefs/2026-08-zyxel-export-cgi-rce/","summary":"An authenticated administrator can exploit a command injection vulnerability in the export-cgi program of Zyxel WAX650S firmware versions through 7.10(ABRM.4)C0 to execute arbitrary OS commands.","title":"Command Injection in Zyxel WAX650S export-cgi","url":"https://feed.craftedsignal.io/briefs/2026-08-zyxel-export-cgi-rce/"}],"language":"en","title":"CraftedSignal Threat Feed - WAX650S Firmware","version":"https://jsonfeed.org/version/1.1"}