{"id":"CVE-2026-23767","state":"PUBLISHED","title":"ESC/POS, a printer control language designed by Seiko Epson Corporation, lacks mechanisms for user authentication and command authorization, does not provide controls to restrict s","description":"ESC/POS, a printer control language designed by Seiko Epson Corporation, lacks mechanisms for user authentication and command authorization, does not provide controls to restrict sources or destinations of network communication, and transmits commands without encryption or integrity protection.","publishedAt":"2026-03-05T05:34:40.895Z","updatedAt":"2026-03-06T10:21:28.591Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"jpcert","products":["Seiko Epson Corporation ESC/POS"],"affected":[{"vendor":"Seiko Epson Corporation","product":"ESC/POS","versions":[{"version":"All products implementing ESC/POS","status":"affected"}]}],"references":["https://www.epson.jp/support/misc_t/260305_oshirase.htm","https://download4.epson.biz/sec_pubs/bs/pdf/IP_Filtering_Guide_en_revA.pdf","https://jvn.jp/en/ta/JVNTA97995322/"],"weaknesses":["CWE-306"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23767.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23767","state":"PUBLISHED","datePublished":"2026-03-05T05:34:40.895Z","dateUpdated":"2026-03-06T10:21:28.591Z","assignerShortName":"jpcert","assignerOrgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateReserved":"2026-01-16T02:20:20.477Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"ESC/POS, a printer control language designed by Seiko Epson Corporation, lacks mechanisms for user authentication and command authorization, does not provide controls to restrict sources or destinations of network communication, and transmits commands without encryption or integrity protection."}],"affected":[{"vendor":"Seiko Epson Corporation","product":"ESC/POS","versions":[{"version":"All products implementing ESC/POS","status":"affected"}]}],"references":[{"url":"https://www.epson.jp/support/misc_t/260305_oshirase.htm"},{"url":"https://download4.epson.biz/sec_pubs/bs/pdf/IP_Filtering_Guide_en_revA.pdf"},{"url":"https://jvn.jp/en/ta/JVNTA97995322/"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-306","description":"Missing authentication for critical function","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"shortName":"jpcert","orgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateUpdated":"2026-03-05T05:34:40.895Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-03-06T10:20:45.963541Z","id":"CVE-2026-23767","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-06T10:21:28.591Z"}}]}}}