{"id":"CVE-2026-71933","aliases":["EUVD-2026-64992","GHSA-x2c7-pf46-x3p9"],"status":"published","title":"DrayTek VigorSwitch Multiple Models Missing Authorization in Syslog Functions","description":"Multiple DrayTek VigorSwitch models contain unauthorized operation vulnerabilities in multiple syslog functions. The vulnerability is caused by missing authorization checks. A remote attacker can trigger these vulnerabilities via crafted requests to modify configuration, restart services, save startup configuration, or clear logs.","severity":{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00553,"percentile":0.46494,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-08-24T17:07:59Z","modified":"2026-10-12T22:10:00Z","products":[{"vendor":"draytek corporation","product":"vigorswitch fx2120"},{"vendor":"draytek corporation","product":"vigorswitch g1280"},{"vendor":"draytek corporation","product":"vigorswitch g1282"},{"vendor":"draytek corporation","product":"vigorswitch g2100"},{"vendor":"draytek corporation","product":"vigorswitch g2121"},{"vendor":"draytek corporation","product":"vigorswitch g2280x"},{"vendor":"draytek corporation","product":"vigorswitch g2282x"},{"vendor":"draytek corporation","product":"vigorswitch g2540x"},{"vendor":"draytek corporation","product":"vigorswitch g2540xs"},{"vendor":"draytek corporation","product":"vigorswitch g2542x"},{"vendor":"draytek corporation","product":"vigorswitch p1280"},{"vendor":"draytek corporation","product":"vigorswitch p1281x"},{"vendor":"draytek corporation","product":"vigorswitch p1282"},{"vendor":"draytek corporation","product":"vigorswitch p2100"},{"vendor":"draytek corporation","product":"vigorswitch p2121"},{"vendor":"draytek corporation","product":"vigorswitch p2280x"},{"vendor":"draytek corporation","product":"vigorswitch p2282x"},{"vendor":"draytek corporation","product":"vigorswitch p2540x"},{"vendor":"draytek corporation","product":"vigorswitch p2540xs"},{"vendor":"draytek corporation","product":"vigorswitch p2542x"},{"vendor":"draytek corporation","product":"vigorswitch p2542xh"},{"vendor":"draytek corporation","product":"vigorswitch pq2121x"},{"vendor":"draytek corporation","product":"vigorswitch pq2200xb"},{"vendor":"draytek corporation","product":"vigorswitch pq2300xb"},{"vendor":"draytek corporation","product":"vigorswitch px2060"},{"vendor":"draytek corporation","product":"vigorswitch q2121x"},{"vendor":"draytek corporation","product":"vigorswitch q2200x"},{"vendor":"draytek corporation","product":"vigorswitch q2300x"}],"references":[{"url":"https://www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026/","tags":["vendor-advisory"]},{"url":"https://www.vulncheck.com/advisories/draytek-vigorswitch-multiple-models-missing-authorization-in-syslog-functions","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-71933"},{"url":"https://www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026"},{"url":"https://github.com/advisories/GHSA-x2c7-pf46-x3p9"}],"sources":{"cve":[{"id":"CVE-2026-71933","title":"DrayTek VigorSwitch Multiple Models Missing Authorization in Syslog Functions","description":"Multiple DrayTek VigorSwitch models contain unauthorized operation vulnerabilities in multiple syslog functions. The vulnerability is caused by missing authorization checks. A remote attacker can trigger these vulnerabilities via crafted requests to modify configuration, restart services, save startup configuration, or clear logs.","status":"published","published":"2026-08-24T17:07:59.089Z","modified":"2026-08-26T16:14:12.954Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:19:49.559463Z"}],"euvd":[{"id":"EUVD-2026-64992","description":"Multiple DrayTek VigorSwitch models contain unauthorized operation vulnerabilities in multiple syslog functions. The vulnerability is caused by missing authorization checks. A remote attacker can trigger these vulnerabilities via crafted requests to modify configuration, restart services, save startup configuration, or clear logs.","status":"published","published":"2026-08-24T17:07:59Z","modified":"2026-08-26T16:14:12Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:01:30.542287Z"}],"ghsa":[{"id":"GHSA-x2c7-pf46-x3p9","title":"Multiple DrayTek VigorSwitch models contain unauthorized operation vulnerabilities in multiple...","description":"Multiple DrayTek VigorSwitch models contain unauthorized operation vulnerabilities in multiple syslog functions. The vulnerability is caused by missing authorization checks. A remote attacker can trigger these vulnerabilities via crafted requests to modify configuration, restart services, save startup configuration, or clear logs.","status":"published","published":"2026-08-24T18:31:56Z","modified":"2026-08-24T18:32:03Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:10:54.733778Z"}],"nvd":[{"id":"CVE-2026-71933","description":"Multiple DrayTek VigorSwitch models contain unauthorized operation vulnerabilities in multiple syslog functions. The vulnerability is caused by missing authorization checks. A remote attacker can trigger these vulnerabilities via crafted requests to modify configuration, restart services, save startup configuration, or clear logs.","status":"published","published":"2026-08-24T18:17:18.09Z","modified":"2026-10-12T22:10:00.247Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:41.018848Z"}]}}