{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-3356", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "state": "PUBLISHED", "assignerShortName": "icscert", "dateReserved": "2026-02-27T18:08:31.007Z", "datePublished": "2026-03-31T18:40:17.359Z", "dateUpdated": "2026-03-31T18:40:17.359Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2026-03-31T18:40:17.359Z"}, "title": "Missing Authentication for Critical Function vulnerability in Anritsu Remote Spectrum Monitor", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-306", "description": "CWE-306 Missing authentication for critical function", "type": "CWE"}]}], "affected": [{"vendor": "Anritsu", "product": "Remote Spectrum Monitor MS27100A", "versions": [{"status": "affected", "version": "All versions", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Anritsu", "product": "Remote Spectrum Monitor MS27101A", "versions": [{"status": "affected", "version": "All versions", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Anritsu", "product": "Remote Spectrum Monitor MS27102A", "versions": [{"status": "affected", "version": "All versions", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Anritsu", "product": "Remote Spectrum Monitor MS27103A", "versions": [{"status": "affected", "version": "All versions", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "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.&nbsp;<br>"}]}], "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-090-01", "tags": ["government-resource"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 9.3, "vectorString": "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"}}], "workarounds": [{"lang": "en", "value": "Anritsu has no plans to fix this issue. Anritsu recommends that users deploy Remote Spectrum Monitor within secure network environments to mitigate potential risks.\n\n\n\nUsers can contact Anritsu Technical Support (1-800-267-4878) for more information.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Anritsu has no plans to fix this issue. Anritsu recommends that users deploy Remote Spectrum Monitor within secure network environments to mitigate potential risks.\n<br>\n<br>Users can contact Anritsu Technical Support (1-800-267-4878) for more information."}]}], "credits": [{"lang": "en", "value": "Souvik Kandar", "type": "reporter"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}}}

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