CVE-2014-0257

Exp

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."

Published: 2014-02-12 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-0257 is rated High Exploit Risk (81.9/100): CVSS Critical severity, with high exploitation likelihood (EPSS 78.10%, 99th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2014-0257

EDB-ID Source Kind Published Link
33892 exploit_db edb 2014-06-27 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2014-0257

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-04 83.77% 78.10% -5.68%
2 2026-03-10 70.43% 83.77% +13.34%
3 2026-03-04 — 70.43% —

Full EPSS history (49 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-0257

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2014-0257

Affected software / configurations for CVE-2014-0257

Vendor Product Version Raw CPE
microsoft .net_framework 1.0 cpe:2.3:a:microsoft:.net_framework:1.0:sp3:*:*:*:*:*:*
microsoft .net_framework 1.1 cpe:2.3:a:microsoft:.net_framework:1.1:sp1:*:*:*:*:*:*
microsoft .net_framework 2.0 cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*
microsoft .net_framework 3.5 cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
microsoft .net_framework 3.5.1 cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*
microsoft .net_framework 4.0 cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:*
microsoft .net_framework 4.5 cpe:2.3:a:microsoft:.net_framework:4.5:*:*:*:*:*:*:*
microsoft .net_framework 4.5.1 cpe:2.3:a:microsoft:.net_framework:4.5.1:*:*:*:*:*:*:*

References for CVE-2014-0257

cvelogic Threat Intelligence