CVE-2013-3131

Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, and 4.5, and Silverlight 5 before 5.1.20513.0, does not properly prevent changes to data in multidimensional arrays of structures, which allows remote attackers to execute arbitrary code via (1) a crafted .NET Framework application or (2) a crafted Silverlight application, aka "Array Access Violation Vulnerability."

Published: 2013-07-10 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-3131 is rated High Risk (72.1/100): CVSS Critical severity, with high exploitation likelihood (EPSS 54.67%, 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-2013-3131

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 2025-10-18 54.06% 54.67% +0.60%
2 2025-04-25 46.91% 54.06% +7.15%
3 2025-03-30 — 46.91% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-3131

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-2013-3131

Affected software / configurations for CVE-2013-3131

Vendor Product Version Raw CPE
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 silverlight 5.0.60401.0 cpe:2.3:a:microsoft:silverlight:5.0.60401.0:*:*:*:*:*:*:*
microsoft silverlight 5.0.60818.0 cpe:2.3:a:microsoft:silverlight:5.0.60818.0:*:*:*:*:*:*:*
microsoft silverlight 5.0.60818.0 cpe:2.3:a:microsoft:silverlight:5.0.60818.0:rc:*:*:*:*:*:*
microsoft silverlight 5.0.61118.0 cpe:2.3:a:microsoft:silverlight:5.0.61118.0:*:*:*:*:*:*:*
microsoft silverlight 5.1.10411.0 cpe:2.3:a:microsoft:silverlight:5.1.10411.0:*:*:*:*:*:*:*
microsoft silverlight 5.1.20125.0 cpe:2.3:a:microsoft:silverlight:5.1.20125.0:*:*:*:*:*:*:*

References for CVE-2013-3131

cvelogic Threat Intelligence