Is CVE-2014-1806 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2014-1806, but active exploitation has not been confirmed.

Can CVE-2014-1806 be exploited remotely?

Yes. CVE-2014-1806 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2014-1806?

CVE-2014-1806 has a CVSS score of 10.0 (CRITICAL).

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CRITICALPOC

CVE-2014-1806

CWE-94Published: May 14, 2014· Updated: Jun 17, 2026

10.0

CVSS v3.1

Official Description

The .NET Remoting implementation in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly restrict memory access, which allows remote attackers to execute arbitrary code via vectors involving malformed objects, aka "TypeFilterLevel Vulnerability."

NVD Source

Technical Analysis

CVE-2014-1806 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2014-1806. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.