{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-3091", "assignerOrgId": "db201096-a0cc-46c7-9a55-61d9e221bf01", "state": "PUBLISHED", "assignerShortName": "synology", "dateReserved": "2026-02-24T01:34:19.753Z", "datePublished": "2026-02-24T02:31:20.298Z", "dateUpdated": "2026-02-24T20:48:54.091Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "Uncontrolled Search Path Element", "cweId": "CWE-427", "type": "CWE"}]}], "affected": [{"vendor": "Synology", "product": "Synology Presto Client", "versions": [{"version": "*", "status": "affected", "lessThan": "2.1.3-0672", "versionType": "semver"}], "defaultStatus": "affected"}], "descriptions": [{"lang": "en", "value": "An uncontrolled search path element vulnerability in Synology Presto Client before 2.1.3-0672 allows local users to read or write arbitrary files during installation by placing a malicious DLL in advance in the same directory as the installer."}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"baseScore": 6.7, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "version": "3.1"}}], "references": [{"url": "https://www.synology.com/en-global/security/advisory/Synology_SA_26_02", "name": "Synology-SA-26:02 Synology Presto Client", "tags": ["vendor-advisory"]}], "credits": [{"lang": "en", "value": "Sahil Shah", "type": "finder"}], "providerMetadata": {"orgId": "db201096-a0cc-46c7-9a55-61d9e221bf01", "shortName": "synology", "dateUpdated": "2026-02-24T02:31:20.298Z"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-02-24T20:48:28.071520Z", "id": "CVE-2026-3091", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"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": "2026-02-24T20:48:54.091Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-3091", "assignerOrgId": "db201096-a0cc-46c7-9a55-61d9e221bf01", "state": "PUBLISHED", "assignerShortName": "synology", "dateReserved": "2026-02-24T01:34:19.753Z", "datePublished": "2026-02-24T02:31:20.298Z", "dateUpdated": "2026-02-24T20:48:54.091Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "Uncontrolled Search Path Element", "cweId": "CWE-427", "type": "CWE"}]}], "affected": [{"vendor": "Synology", "product": "Synology Presto Client", "versions": [{"version": "*", "status": "affected", "lessThan": "2.1.3-0672", "versionType": "semver"}], "defaultStatus": "affected"}], "descriptions": [{"lang": "en", "value": "An uncontrolled search path element vulnerability in Synology Presto Client before 2.1.3-0672 allows local users to read or write arbitrary files during installation by placing a malicious DLL in advance in the same directory as the installer."}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"baseScore": 6.7, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "version": "3.1"}}], "references": [{"url": "https://www.synology.com/en-global/security/advisory/Synology_SA_26_02", "name": "Synology-SA-26:02 Synology Presto Client", "tags": ["vendor-advisory"]}], "credits": [{"lang": "en", "value": "Sahil Shah", "type": "finder"}], "providerMetadata": {"orgId": "db201096-a0cc-46c7-9a55-61d9e221bf01", "shortName": "synology", "dateUpdated": "2026-02-24T02:31:20.298Z"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-3091", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-02-24T20:48:28.071520Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-24T20:48:47.569Z"}}]}}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "An uncontrolled search path element vulnerability in Synology Presto Client before 2.1.3-0672 allows local users to read or write arbitrary files during installation by placing a malicious DLL in advance in the same directory as the installer."}], "id": "CVE-2026-3091", "lastModified": "2026-02-24T14:13:49.320", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "security@synology.com", "type": "Primary"}]}, "published": "2026-02-24T03:16:03.890", "references": [{"source": "security@synology.com", "url": "https://www.synology.com/en-global/security/advisory/Synology_SA_26_02"}], "sourceIdentifier": "security@synology.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-427"}], "source": "security@synology.com", "type": "Primary"}]}

{}