What is the CVSS score of CVE-2013-3896?

CVE-2013-3896 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N. EPSS exploitation probability: 81.6%.

Is there a public PoC exploit available for CVE-2013-3896?

Yes, a public proof-of-concept exploit is available for CVE-2013-3896. Prioritise patching immediately. EPSS: 81.6%.

Is there a patch available for CVE-2013-3896?

Yes, a patch is available for CVE-2013-3896. Update the affected software to the latest version immediately.

Microsoft CVE-2013-3896

MEDIUM

2013-10-09 secure@microsoft.com

Information Disclosure Microsoft

5.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Added to CISA KEV

Apr 21, 2026 - 15:31 CISA

CVE Published

Oct 09, 2013 - 14:53 cve.org

MEDIUM 5.5

DescriptionCVE.org

AnalysisAI

Microsoft Silverlight 5 before 5.1.20913.0 does not properly validate pointers during access to Silverlight elements, which allows remote attackers to obtain sensitive information via a crafted. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and public exploit code available.

Technical ContextAI

Microsoft Silverlight 5 before 5.1.20913.0 does not properly validate pointers during access to Silverlight elements, which allows remote attackers to obtain sensitive information via a crafted Silverlight application, aka "Silverlight Vulnerability." Affected products include: Microsoft Silverlight. Version information: before 5.1.20913.0.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.