CVE-2012-0176

Double free vulnerability in Microsoft Silverlight 4 before 4.1.10329 on Windows allows remote attackers to execute arbitrary code via vectors involving crafted XAML glyphs, aka "Silverlight Double-Free Vulnerability."

Published: 2012-05-09 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-0176 is rated High Risk (66.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 62.11%, 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-2012-0176

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 2025-03-30 72.02% 62.11% -9.91%
2 2025-03-29 62.11% 72.02% +9.91%
3 2025-03-19 — 62.11% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-0176

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-2012-0176

Affected software / configurations for CVE-2012-0176

Vendor Product Version Raw CPE
microsoft silverlight 4.0.50401.0 cpe:2.3:a:microsoft:silverlight:4.0.50401.0:*:*:*:*:*:*:*
microsoft silverlight 4.0.50524.00 cpe:2.3:a:microsoft:silverlight:4.0.50524.00:*:*:*:*:*:*:*
microsoft silverlight 4.0.50826.0 cpe:2.3:a:microsoft:silverlight:4.0.50826.0:*:*:*:*:*:*:*
microsoft silverlight 4.0.50917.0 cpe:2.3:a:microsoft:silverlight:4.0.50917.0:*:*:*:*:*:*:*
microsoft silverlight 4.0.51204.0 cpe:2.3:a:microsoft:silverlight:4.0.51204.0:*:*:*:*:*:*:*
microsoft silverlight 4.0.60129.0 cpe:2.3:a:microsoft:silverlight:4.0.60129.0:*:*:*:*:*:*:*
microsoft silverlight 4.0.60310.0 cpe:2.3:a:microsoft:silverlight:4.0.60310.0:*:*:*:*:*:*:*
microsoft silverlight 4.0.60531.0 cpe:2.3:a:microsoft:silverlight:4.0.60531.0:*:*:*:*:*:*:*
microsoft silverlight 4.0.60831.0 cpe:2.3:a:microsoft:silverlight:4.0.60831.0:*:*:*:*:*:*:*
microsoft silverlight 4.0.603310.0 cpe:2.3:a:microsoft:silverlight:4.0.603310.0:*:*:*:*:*:*:*
microsoft silverlight 4.1.10111 cpe:2.3:a:microsoft:silverlight:4.1.10111:*:*:*:*:*:*:*
microsoft silverlight 4.1.10111.0 cpe:2.3:a:microsoft:silverlight:4.1.10111.0:*:*:*:*:*:*:*

References for CVE-2012-0176

cvelogic Threat Intelligence