{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-66631", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-12-05T15:42:44.716Z", "datePublished": "2025-12-09T03:18:37.698Z", "dateUpdated": "2025-12-09T15:15:06.460Z" }, "containers": { "cna": { "title": "CSLA .NET is vulnerable to Remote Code Execution via WcfProxy", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-502", "lang": "en", "description": "CWE-502: Deserialization of Untrusted Data", "type": "CWE" } ] } ], "metrics": [ { "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.2, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U", "version": "4.0" } } ], "references": [ { "name": "https://github.com/MarimerLLC/csla/security/advisories/GHSA-wq34-7f4g-953v", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/MarimerLLC/csla/security/advisories/GHSA-wq34-7f4g-953v" }, { "name": "https://github.com/MarimerLLC/csla/issues/4001", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/MarimerLLC/csla/issues/4001" }, { "name": "https://github.com/MarimerLLC/csla/pull/4018", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/MarimerLLC/csla/pull/4018" } ], "affected": [ { "vendor": "MarimerLLC", "product": "csla", "versions": [ { "version": "< 6.0.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-12-09T03:18:37.698Z" }, "descriptions": [ { "lang": "en", "value": "CSLA .NET is a framework designed for the development of reusable, object-oriented business layers for applications. Versions 5.5.4 and below allow the use of WcfProxy. WcfProxy uses the now-obsolete NetDataContractSerializer (NDCS) and is vulnerable to remote code execution during deserialization. This vulnerability is fixed in version 6.0.0. To workaround this issue, remove the WcfProxy in data portal configurations." } ], "source": { "advisory": "GHSA-wq34-7f4g-953v", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2025-12-09T15:15:00.371059Z", "id": "CVE-2025-66631", "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": "2025-12-09T15:15:06.460Z" } } ] } }