CVE-2014-4149

Name: CVE-2014-4149
Creator: NVD / NIST
Published: 2014-11-11T22:55:04.857+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 21.44%

Last modified Jun 17, 2026

CVE-2014-4149 is a vulnerability of currently unknown severity. 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.". EPSS estimates a 21.44% chance of exploitation in the next 30 days.

Description

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."

Metrics

EPSS Probability

21.44%

97.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions	Update
Microsoft	.Net Framework	1.1	Sp1
Microsoft	.Net Framework	2.0	Sp2
Microsoft	.Net Framework	3.5	—
Microsoft	.Net Framework	3.5.1	—
Microsoft	.Net Framework	4.0	—
Microsoft	.Net Framework	4.5	—
Microsoft	.Net Framework	4.5.1	—
Microsoft	.Net Framework	4.5.2	—

References

Timeline

Published: Nov 11, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-4149?

How severe is CVE-2014-4149?

Severity scoring for CVE-2014-4149 is pending analysis. The EPSS model estimates a 21.44% probability of exploitation in the next 30 days.

How do I fix CVE-2014-4149?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-4149?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST