{"id":"CVE-2026-4795","state":"PUBLISHED","title":"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 vers","description":"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.","publishedAt":"2026-05-26T01:42:37.914Z","updatedAt":"2026-05-26T12:18:03.665Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","source":"Zyxel"},"assigner":"Zyxel","products":["Zyxel GS1200-5v3 firmware","Zyxel GS1200-8v3 firmware","Zyxel GS1200-5HPv3 firmware","Zyxel GS1200-8HPv3 firmware","Zyxel GS1200-10v3 firmware"],"affected":[{"vendor":"Zyxel","product":"GS1200-5v3 firmware","defaultStatus":"unaffected","versions":[{"version":"<= 1.00(ACPS.2)C0","status":"affected"}]},{"vendor":"Zyxel","product":"GS1200-8v3 firmware","defaultStatus":"unaffected","versions":[{"version":"<= 1.00(ACPT.2)C0","status":"affected"}]},{"vendor":"Zyxel","product":"GS1200-5HPv3 firmware","defaultStatus":"unaffected","versions":[{"version":"<= 1.00(ACPU.2)C0","status":"affected"}]},{"vendor":"Zyxel","product":"GS1200-8HPv3 firmware","defaultStatus":"unaffected","versions":[{"version":"<= 1.00(ACPV.2)C0","status":"affected"}]},{"vendor":"Zyxel","product":"GS1200-10v3 firmware","defaultStatus":"unaffected","versions":[{"version":"<= 1.00(ACPW.2)C0","status":"affected"}]}],"references":["https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-missing-authorization-vulnerability-in-gs1200v3-series-switches-05-26-2026"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/4xxx/CVE-2026-4795.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-4795","state":"PUBLISHED","datePublished":"2026-05-26T01:42:37.914Z","dateUpdated":"2026-05-26T12:18:03.665Z","assignerShortName":"Zyxel","assignerOrgId":"96e50032-ad0d-4058-a115-4d2c13821f9f","dateReserved":"2026-03-25T02:49:26.644Z"},"containers":{"cna":{"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."}],"affected":[{"vendor":"Zyxel","product":"GS1200-5v3 firmware","defaultStatus":"unaffected","versions":[{"version":"<= 1.00(ACPS.2)C0","status":"affected"}]},{"vendor":"Zyxel","product":"GS1200-8v3 firmware","defaultStatus":"unaffected","versions":[{"version":"<= 1.00(ACPT.2)C0","status":"affected"}]},{"vendor":"Zyxel","product":"GS1200-5HPv3 firmware","defaultStatus":"unaffected","versions":[{"version":"<= 1.00(ACPU.2)C0","status":"affected"}]},{"vendor":"Zyxel","product":"GS1200-8HPv3 firmware","defaultStatus":"unaffected","versions":[{"version":"<= 1.00(ACPV.2)C0","status":"affected"}]},{"vendor":"Zyxel","product":"GS1200-10v3 firmware","defaultStatus":"unaffected","versions":[{"version":"<= 1.00(ACPW.2)C0","status":"affected"}]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing 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