How severe is CVE-2014-1806?

CVE-2014-1806 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2014-1806 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 40% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-1806?

CVE-2014-1806 primarily affects Microsoft .net Framework. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-1806?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2014-1806 published?

CVE-2014-1806 was published on 2014-05-14 and last updated on 2026-06-17.

CVE-2014-1806

CVE-2014-1806 is a critical-severity vulnerability in Microsoft .net Framework with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 40% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 40% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Microsoft .net Framework
Published: 2014-05-14
Last modified: 2026-06-17

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."

Frequently asked questions

What is CVE-2014-1806?: 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."
How severe is CVE-2014-1806?: CVE-2014-1806 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2014-1806 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 40% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-1806?: CVE-2014-1806 primarily affects Microsoft .net Framework. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-1806?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2014-1806 published?: CVE-2014-1806 was published on 2014-05-14 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:microsoft:.net_framework:1.1:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.5:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.5.1:*:*:*:*:*:*:*

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