CVE-2013-0073

The Windows Forms (aka WinForms) component in Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, and 4.5 does not properly restrict the privileges of a callback function during object creation, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (XBAP) or (2) a crafted .NET Framework application, aka "WinForms Callback Elevation Vulnerability."

Published: 2013-02-13 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-0073 is rated High Risk (71/100): CVSS Critical severity, with high exploitation likelihood (EPSS 55.82%, 98th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2013-0073

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 2026-04-28 59.17% 55.82% -3.35%
2 2025-12-28 53.18% 59.17% +5.99%
3 2025-12-27 — 53.18% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-0073

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/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:L)
Exploitation conditions are straightforward and predictable.
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.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2013-0073

Affected software / configurations for CVE-2013-0073

Vendor Product Version Raw CPE
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 2.0 cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*

References for CVE-2013-0073

cvelogic Threat Intelligence