{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4795", "assignerOrgId": "96e50032-ad0d-4058-a115-4d2c13821f9f", "state": "PUBLISHED", "assignerShortName": "Zyxel", "dateReserved": "2026-03-25T02:49:26.644Z", "datePublished": "2026-05-26T01:42:37.914Z", "dateUpdated": "2026-05-26T01:42:37.914Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "96e50032-ad0d-4058-a115-4d2c13821f9f", "shortName": "Zyxel", "dateUpdated": "2026-05-26T01:42:37.914Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-862", "description": "CWE-862: Missing Authorization", "type": "CWE"}]}], "affected": [{"vendor": "Zyxel", "product": "GS1200-5v3 firmware", "versions": [{"status": "affected", "version": "<= 1.00(ACPS.2)C0"}], "defaultStatus": "unaffected"}, {"vendor": "Zyxel", "product": "GS1200-8v3 firmware", "versions": [{"status": "affected", "version": "<= 1.00(ACPT.2)C0"}], "defaultStatus": "unaffected"}, {"vendor": "Zyxel", "product": "GS1200-5HPv3 firmware", "versions": [{"status": "affected", "version": "<= 1.00(ACPU.2)C0"}], "defaultStatus": "unaffected"}, {"vendor": "Zyxel", "product": "GS1200-8HPv3 firmware", "versions": [{"status": "affected", "version": "<= 1.00(ACPV.2)C0"}], "defaultStatus": "unaffected"}, {"vendor": "Zyxel", "product": "GS1200-10v3 firmware", "versions": [{"status": "affected", "version": "<= 1.00(ACPW.2)C0"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A missing authorization vulnerability in Zyxel GS1200-5v3 firmware versions through 1.00(ACPS.2)C0,\u00a0GS1200-8v3 firmware versions through 1.00(ACPT.2)C0,\u00a0 GS1200-5HPv3 firmware versions through 1.00(ACPU.2)C0, GS1200-8HPv3 firmware versions through 1.00(ACPV.2)C0, and GS1200-10v3 firmware versions through 1.00(ACPW.2)C0 could allow a LAN-based, unauthenticated attacker to read the system configuration from a log file via a crafted HTTP request.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A missing authorization vulnerability in Zyxel GS1200-5v3 firmware versions through 1.00(ACPS.2)C0,&nbsp;GS1200-8v3 firmware versions through 1.00(ACPT.2)C0,&nbsp; GS1200-5HPv3 firmware versions through 1.00(ACPU.2)C0, GS1200-8HPv3 firmware versions through 1.00(ACPV.2)C0, and GS1200-10v3 firmware versions through 1.00(ACPW.2)C0 could allow a LAN-based, unauthenticated attacker to read the system configuration from a log file via a crafted HTTP request."}]}], "references": [{"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-missing-authorization-vulnerability-in-gs1200v3-series-switches-05-26-2026", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseSeverity": "MEDIUM", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}}}

{}

{}

{}

{"created": "2026-05-26T04:00:13.688140+00:00", "title": "Missing Authorization Allows LAN\u2011Based Unauthenticated Read of System Configuration", "updated": "2026-05-26T04:00:13.688178+00:00", "vendors": []}