{"id":"CVE-2026-3356","aliases":["EUVD-2026-17585","GHSA-9c77-73hr-45rf"],"status":"published","title":"Missing Authentication for Critical Function vulnerability in Anritsu Remote Spectrum Monitor","description":"The MS27102A Remote Spectrum Monitor is vulnerable to an authentication bypass that allows unauthorized users to access and manipulate its management interface. Because the device provides no mechanism to enable or configure authentication, the issue is inherent to its design rather than a deployment error.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00402,"percentile":0.34725,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2026-03-31T18:40:17Z","modified":"2026-07-24T20:10:00Z","products":[{"vendor":"anritsu","product":"remote spectrum monitor ms27100a"},{"vendor":"anritsu","product":"remote spectrum monitor ms27101a"},{"vendor":"anritsu","product":"remote spectrum monitor ms27102a"},{"vendor":"anritsu","product":"remote spectrum monitor ms27103a"}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-090-01","tags":["government-resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3356"},{"url":"https://github.com/advisories/GHSA-9c77-73hr-45rf"}],"sources":{"cve":[{"id":"CVE-2026-3356","title":"Missing Authentication for Critical Function vulnerability in Anritsu Remote Spectrum Monitor","description":"The MS27102A Remote Spectrum Monitor is vulnerable to an authentication bypass that allows unauthorized users to access and manipulate its management interface. Because the device provides no mechanism to enable or configure authentication, the issue is inherent to its design rather than a deployment error.","status":"published","published":"2026-03-31T18:40:17.359Z","modified":"2026-04-01T13:43:44.724Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T13:49:09.229322Z"}],"euvd":[{"id":"EUVD-2026-17585","description":"The MS27102A Remote Spectrum Monitor is vulnerable to an authentication bypass that allows unauthorized users to access and manipulate its management interface. Because the device provides no mechanism to enable or configure authentication, the issue is inherent to its design rather than a deployment error.","status":"published","published":"2026-03-31T18:40:17Z","modified":"2026-04-01T13:43:44Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-02T19:25:24.493801Z"}],"ghsa":[{"id":"GHSA-9c77-73hr-45rf","title":"The MS27102A Remote Spectrum Monitor is vulnerable to an authentication bypass that allows...","description":"The MS27102A Remote Spectrum Monitor is vulnerable to an authentication bypass that allows unauthorized users to access and manipulate its management interface. Because the device provides no mechanism to enable or configure authentication, the issue is inherent to its design rather than a deployment error.","status":"published","published":"2026-03-31T21:31:18Z","modified":"2026-03-31T21:31:19Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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":"critical"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T15:06:56.438153Z"}],"nvd":[{"id":"CVE-2026-3356","description":"The MS27102A Remote Spectrum Monitor is vulnerable to an authentication bypass that allows unauthorized users to access and manipulate its management interface. Because the device provides no mechanism to enable or configure authentication, the issue is inherent to its design rather than a deployment error.","status":"published","published":"2026-03-31T19:16:28.943Z","modified":"2026-07-24T20:10:00.147Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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":"critical","assessor":"secondary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:12:12.261218Z"}]}}