{"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":"2026-05-26T12:18:03.665Z"},"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, GS1200-8v3 firmware versions through 1.00(ACPT.2)C0,  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"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-26T12:17:48.434391Z","id":"CVE-2026-4795","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-26T12:18:03.665Z"}}]}}