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A buffer overflow vulnerability in the URL parser of the zhttpd web server in Zyxel VMG8825-T50K firmware versions prior to V5.50(ABOM.5)C0 could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and potentially execute arbitrary code by sending a specially crafted HTTP request.
Use CWE-120, Zyxel vendor hub and Emg3525-T50b Firmware product page to widen CVE-2025-7673 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2025-13943, CVE-2025-8693 and CVE-2026-1459 for nearby disclosures in the same product family.