{"id":"CVE-2020-15415","published":"2020-06-30T14:15:11Z","modified":"2026-06-17T02:56:38Z","title":"DrayTek Multiple Vigor Routers OS Command Injection Vulnerability","vendor":"DrayTek","product":"Multiple Vigor Routers","tier":"core","eol":null,"description":{"text":"On DrayTek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1, cgi-bin/mainfunction.cgi/cvmcfgupload allows remote command execution via shell metacharacters in a filename when the text/x-python-script content type is used, a different issue than CVE-2020-14472.","provenance":"source","from":"NVD"},"summary":{"text":"DrayTek Multiple Vigor Routers contain an OS command injection flaw in the cgi-bin/mainfunction.cgi/cvmcfgupload component of Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1, where shell metacharacters in a filename are not neutralized. A remote attacker with no authentication or user interaction can execute arbitrary commands on the device by sending a request using the text/x-python-script content type with crafted shell metacharacters in the filename.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-30T13:36:04Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.8448,"percentile":0.99701,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2024-09-30","dueDate":"2024-10-21","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/vigor3900-/-vigor2960-/-vigor300b-remote-code-injection/execution-vulnerability-(cve-2020-14472) ; https://nvd.nist.gov/vuln/detail/CVE-2020-15415","provenance":"source"},"vulncheckKev":{"dateAdded":"2023-02-15","exploitedFirstSeen":"2023-02-15","ransomware":false,"evidence":[{"url":"https://unit42.paloaltonetworks.com/mirai-variant-v3g4/","date":"2023-02-15"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-02-01&host_type=src&vulnerability=cve-2020-15415","date":"2024-02-01"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-03-13&host_type=src&vulnerability=cve-2020-15415","date":"2024-03-13"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-03-14&host_type=src&vulnerability=cve-2020-15415","date":"2024-03-14"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-03-20&host_type=src&vulnerability=cve-2020-15415","date":"2024-03-20"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-03-21&host_type=src&vulnerability=cve-2020-15415","date":"2024-03-21"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-05-15&host_type=src&vulnerability=cve-2020-15415","date":"2024-05-15"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-08-28&host_type=src&vulnerability=cve-2020-15415","date":"2024-08-28"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-09-14&host_type=src&vulnerability=cve-2020-15415","date":"2024-09-14"},{"url":"https://media.defense.gov/2024/Sep/18/2003547016/-1/-1/0/CSA-PRC-LINKED-ACTORS-BOTNET.PDF","date":"2024-09-18"}],"evidenceTotal":389,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"references":[{"url":"https://github.com/CLP-team/Vigor-Commond-Injection","tags":["Exploit"]},{"url":"https://www.draytek.com/about/security-advisory","tags":["Vendor Advisory"]},{"url":"https://github.com/CLP-team/Vigor-Commond-Injection","tags":["Exploit"]},{"url":"https://www.draytek.com/about/security-advisory","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-15415","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Remote unauthenticated HTTP endpoint exploitation of router web service","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"allows remote command execution via shell metacharacters in a filename","start":107,"end":177}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: OS command injection yields arbitrary command execution","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allows remote command execution via shell metacharacters in a filename","start":107,"end":177}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2020-7408","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-7408","exploited":true,"exploitedSince":"2024-09-30","provenance":"source"},"exploits":[],"exploitSources":{"nuclei":[{"id":"CVE-2020-15415","name":"DrayTek Vigor - Command Injection","severity":"critical","path":"http/cves/2020/CVE-2020-15415.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-15415.yaml"}],"provenance":"source"},"exploitRefs":["https://github.com/CLP-team/Vigor-Commond-Injection"],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2020-06-30","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15415","provenance":"source"},{"date":"2023-02-15","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://unit42.paloaltonetworks.com/mirai-variant-v3g4/","provenance":"source"},{"date":"2024-09-30","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2024-09-30","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-7408","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":1553},"priority":{"score":69.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1354 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS 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