Disclosure summary
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-reported weakness categories
CWE-502
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2025-66631
Open original source · Updated Oct 07, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| cslanet | csla_.net | * {"versionEndExcluding":"6.0.0"} |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Issue Tracking
- github.com — Issue Tracking, Patch
- github.com — Mitigation, Vendor Advisory
PUBLISHED 2025-12-09T11:18:22-05:00
MODIFIED 2026-10-07T16:10:01-04:00
INGESTED 2026-10-08T12:35:36-04:00