VulnerabilityAnalyzed
CVE-2025-66631
Versions 5.5.4 and below allow the use of WcfProxy.
HIGH 7.2EPSS 0.67%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.67%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 4.0
- 7.2 HIGHCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.67% probability · 50th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- cslanet/csla .net
- Source
- security-advisories@github.com
References
- https://github.com/MarimerLLC/csla/issues/4001Issue Tracking
- https://github.com/MarimerLLC/csla/pull/4018Issue Tracking, Patch
- https://github.com/MarimerLLC/csla/security/advisories/GHSA-wq34-7f4g-953vMitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.