{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-35087","assignerOrgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","state":"PUBLISHED","assignerShortName":"CERT-PL","dateReserved":"2026-04-01T11:23:16.117Z","datePublished":"2026-05-27T12:42:04.409Z","dateUpdated":"2026-05-27T15:39:44.033Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"IPx","vendor":"Slican","versions":[{"lessThan":"6.61.0040","status":"affected","version":"0","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"CCT-1668","vendor":"Slican","versions":[{"lessThan":"6.56.0430","status":"affected","version":"0","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"MAC-6400","vendor":"Slican","versions":[{"lessThan":"6.56.0430","status":"affected","version":"0","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"CXS-0424","vendor":"Slican","versions":[{"lessThan":"6.30.0510","status":"affected","version":"0","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"NCP","vendor":"Slican","versions":[{"lessThan":"1.24.0250","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Grupa ŻN"}],"datePublic":"2026-05-27T12:41:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Slican telephone exchanges allow administrative protocol authentication bypass. An attacker can bypass the need to enter login credentials by executing the appropriate command.<br><br><br>This issue was fixed in versions below:<br><span style=\"background-color: rgb(255, 255, 255);\">- NCP: version 1.24.0250</span><br><span style=\"background-color: rgb(255, 255, 255);\">- IPx series: version 6.61.0040</span><br><span style=\"background-color: rgb(255, 255, 255);\">- CCT-1668: version 6.56.0430</span><br><span style=\"background-color: rgb(255, 255, 255);\">- MAC-6400: version 6.56.0430</span><br><span style=\"background-color: rgb(255, 255, 255);\">- CXS-0424: version 6.30.0510<br><br></span>The issue STILL EXISTS in End-Of-Life telephone exchanges in versions 4.xx and below:<br><span style=\"background-color: rgb(255, 255, 255);\">- CCT-1668 (<span style=\"background-color: rgba(221, 223, 228, 0.1);\">CCT1CPU)</span></span><br><span style=\"background-color: rgb(255, 255, 255);\">- MAC-6400<br></span>-&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">CXS-0424<br></span>These products were discontinued in 2011 and 2012 and and will not receive updates. These products require a hardware update in order to receive a software update. The vendor recommends that users of these devices contact the their service department directly to determine the options for upgrading."}],"value":"Slican telephone exchanges allow administrative protocol authentication bypass. An attacker can bypass the need to enter login credentials by executing the appropriate command.\n\n\nThis issue was fixed in versions below:\n- NCP: version 1.24.0250\n- IPx series: version 6.61.0040\n- CCT-1668: version 6.56.0430\n- MAC-6400: version 6.56.0430\n- CXS-0424: version 6.30.0510\n\nThe issue STILL EXISTS in End-Of-Life telephone exchanges in versions 4.xx and below:\n- CCT-1668 (CCT1CPU)\n- MAC-6400\n- CXS-0424\nThese products were discontinued in 2011 and 2012 and and will not receive updates. These products require a hardware update in order to receive a software update. The vendor recommends that users of these devices contact the their service department directly to determine the options for upgrading."}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-288","description":"CWE-288 Authentication Bypass Using an Alternate Path or Channel","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","shortName":"CERT-PL","dateUpdated":"2026-05-27T12:51:19.907Z"},"references":[{"tags":["third-party-advisory"],"url":"https://cert.pl/posts/2026/05/CVE-2026-35087"}],"source":{"discovery":"EXTERNAL"},"title":"Authentication Bypass in Slican telephone exchanges","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-27T15:39:29.538641Z","id":"CVE-2026-35087","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-27T15:39:44.033Z"}}]}}