{"id":"CVE-2026-7273","vendor_project":"Zyxel","product":"GS1900 Series Switches","vulnerability_name":"Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability","date_added":"2026-09-21","due_date":"2026-09-24","known_ransomware_use":"Unknown","short_description":"Zyxel GS1900 series switches contain a stack-based buffer overflow vulnerability in the CGI program which could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","cwes":"CWE-121","cvss_version":"3.1","cvss_severity":"HIGH","cvss_vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","nvd_published":"2026-06-16","nvd_status":"Analyzed","epss":0.0241,"epss_percentile":0.83386,"cvss_score":8.8,"days_published_to_kev":97,"source":"https://data.cybermax-tools.workers.dev/cve/CVE-2026-7273","by":"CyberMax"}