Is CVE-2014-4149 being actively exploited?

CVE-2014-4149 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2014-4149?

CVE-2014-4149 has a CVSS 2.0 base score of 9.3 (HIGH).

CVE-2014-4149

HIGH · CVSS 9.3EPSS 21.4%EU EUVD

Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly perform TypeFilterLevel checks, which allows remote attackers to execute arbitrary code via crafted data to a .NET Remoting endpoint, aka "TypeFilterLevel Vulnerability."

Key facts

CVSS score: 9.3 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-20
EPSS score: 21.4% (98th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2014-4080)
Published: November 11, 2014
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2014-4080 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / .net framework
microsoft / .net framework
microsoft / .net framework
microsoft / .net framework
microsoft / .net framework
microsoft / .net framework
microsoft / .net framework
microsoft / .net framework

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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