{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-66592", "assignerOrgId": "db201096-a0cc-46c7-9a55-61d9e221bf01", "state": "PUBLISHED", "assignerShortName": "synology", "dateReserved": "2025-12-05T03:19:16.760Z", "datePublished": "2026-05-27T08:43:05.069Z", "dateUpdated": "2026-05-27T08:43:05.069Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "Origin Validation Error", "cweId": "CWE-346", "type": "CWE"}]}], "affected": [{"vendor": "Synology", "product": "Synology Active Backup for Business Agent", "versions": [{"version": "*", "status": "affected", "lessThan": "3.1.0-4967", "versionType": "semver"}], "defaultStatus": "affected"}], "descriptions": [{"lang": "en", "value": "An origin validation error vulnerability in Synology Active Backup for Business Agent before 3.1.0-4967 allows local users to write arbitrary files with restricted content during installation."}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"baseScore": 6.1, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "HIGH", "version": "3.1"}}], "references": [{"url": "https://www.synology.com/en-global/security/advisory/Synology_SA_25_16", "name": "Synology-SA-25:16 Synology Active Backup for Business Agent", "tags": ["vendor-advisory"]}], "credits": [{"lang": "en", "value": "Sheikh Rishad (https://x.com/sheikhrishad0)", "type": "finder"}], "providerMetadata": {"orgId": "db201096-a0cc-46c7-9a55-61d9e221bf01", "shortName": "synology", "dateUpdated": "2026-05-27T08:43:05.069Z"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "An origin validation error vulnerability in Synology Active Backup for Business Agent before 3.1.0-4967 allows local users to write arbitrary files with restricted content during installation."}], "id": "CVE-2025-66592", "lastModified": "2026-05-27T09:16:27.633", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 4.2, "source": "security@synology.com", "type": "Primary"}]}, "published": "2026-05-27T09:16:27.633", "references": [{"source": "security@synology.com", "url": "https://www.synology.com/en-global/security/advisory/Synology_SA_25_16"}], "sourceIdentifier": "security@synology.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-346"}], "source": "security@synology.com", "type": "Primary"}]}

{}

{"created": "2026-05-27T10:30:28.588486+00:00", "title": "Local User File Write Vulnerability in Synology Active Backup for Business Agent", "updated": "2026-05-27T10:30:28.588506+00:00", "vendors": []}