{"id":"CVE-2021-20124","published":"2021-10-13T16:15:07Z","modified":"2026-06-17T03:33:18Z","title":"Draytek VigorConnect Path Traversal Vulnerability","vendor":"DrayTek","product":"VigorConnect","tier":"core","eol":null,"description":{"text":"A local file inclusion vulnerability exists in Draytek VigorConnect 1.6.0-B3 in the file download functionality of the WebServlet endpoint. An unauthenticated attacker could leverage this vulnerability to download arbitrary files from the underlying operating system with root privileges.","provenance":"source","from":"NVD"},"summary":{"text":"A path traversal flaw in the file download functionality of the WebServlet endpoint in DrayTek VigorConnect 1.6.0-B3 allows arbitrary files to be read from the underlying operating system. An unauthenticated attacker with network access can exploit it without user interaction, and the download runs with root privileges.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-31T04:54:39Z"},"cvss":{"score":7.5,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.95917,"percentile":0.99873,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2024-09-03","dueDate":"2024-09-24","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","notes":"https://www.draytek.com/about/security-advisory/vigorconnect-software-security-vulnerability-(cve-2021-20123-cve-2021-20129); https://nvd.nist.gov/vuln/detail/CVE-2021-20124","provenance":"source"},"vulncheckKev":{"dateAdded":"2024-09-03","exploitedFirstSeen":"2024-09-03","ransomware":false,"evidence":[{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-09-03&host_type=src&vulnerability=cve-2021-20124","date":"2024-09-03"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2024-09-03"},{"url":"https://www.tenable.com/blog/cve-2021-20123-cve-2021-20124-draytek-vulnerabilities-discovered-by-tenable-research-added-to","date":"2024-09-09"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-09-14&host_type=src&vulnerability=cve-2021-20124","date":"2024-09-14"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-09-18&host_type=src&vulnerability=cve-2021-20124","date":"2024-09-18"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-09-21&host_type=src&vulnerability=cve-2021-20124","date":"2024-09-21"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-09-22&host_type=src&vulnerability=cve-2021-20124","date":"2024-09-22"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-09-26&host_type=src&vulnerability=cve-2021-20124","date":"2024-09-26"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-09-27&host_type=src&vulnerability=cve-2021-20124","date":"2024-09-27"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-09-28&host_type=src&vulnerability=cve-2021-20124","date":"2024-09-28"}],"evidenceTotal":268,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev 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