{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-27377","assignerOrgId":"4760f414-e1ae-4ff1-bdad-c7a9c3538b79","state":"PUBLISHED","assignerShortName":"Altium","dateReserved":"2025-02-23T21:02:12.105Z","datePublished":"2026-01-22T00:16:04.634Z","dateUpdated":"2026-01-22T14:41:16.446Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","modules":["Cloud connections"],"platforms":["Web"],"product":"Altium Designer","vendor":"Altium","versions":[{"changes":[{"at":"25.2","status":"unaffected"}],"lessThanOrEqual":"25.1","status":"affected","version":"24.9","versionType":"semver"}]}],"datePublic":"2025-04-04T15:43:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Altium Designer version 24.9.0 does not validate self-signed server certificates for cloud connections. An attacker capable of performing a man-in-the-middle (MITM) attack could exploit this issue to intercept or manipulate network traffic, potentially exposing authentication credentials or sensitive design data.<br><br>"}],"value":"Altium Designer version 24.9.0 does not validate self-signed server certificates for cloud connections. An attacker capable of performing a man-in-the-middle (MITM) attack could exploit this issue to intercept or manipulate network traffic, potentially exposing authentication credentials or sensitive design data."}],"impacts":[{"capecId":"CAPEC-94","descriptions":[{"lang":"en","value":"CAPEC-94 Man-in-the-Middle Attack"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-295","description":"CWE-295 – Improper Certificate Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"4760f414-e1ae-4ff1-bdad-c7a9c3538b79","shortName":"Altium","dateUpdated":"2026-01-22T00:18:54.051Z"},"references":[{"url":"https://www.altium.com/platform/security-compliance/security-advisories"}],"source":{"discovery":"EXTERNAL"},"title":"Missing Validation of Self-Signed Certificates in Altium Designer Allows Man-in-the-Middle Attacks","x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-22T14:41:09.462402Z","id":"CVE-2025-27377","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":"2026-01-22T14:41:16.446Z"}}]}}