Is CVE-2014-0257 in the CISA KEV catalog?

No. CVE-2014-0257 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-0257?

CVE-2014-0257 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2014-0257?

CVE-2014-0257 has an EPSS score of 69.80% (99th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2014-0257

HIGHEPSS 99th pctl

9.3

CVSS v2

NVD

Description

Microsoft .NET Framework 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine whether it is safe to execute a method, which allows remote attackers to execute arbitrary code via (1) a crafted web site or (2) a crafted .NET Framework application that exposes a COM server endpoint, aka "Type Traversal Vulnerability."

CWE-20Improper Input Validation

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

69.80%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.