CVE-2013-3896mediumunder attack

CVE-2013-3896

Published · Updated

90Vexday Risk Score

Patch now. It under exploitation confirmed by CISA and has a working public exploit.

ssvc Actcvss 5.5epss 68%
from disclosure to weapon0 days
Published on NVDOct 9
1st PoCMar 12
metasploitMar 12
CISA KEV+3150d
exploitation probability
68%top 1% of all CVEs
observed exploitation
yesCISA + VulnCheck
1 public exploit(s)
Action required by CISAfederal deadline: 2022-06-15

The impacted product is end-of-life and should be disconnected if still in use.

In short

Microsoft Silverlight 5 fails to properly check memory pointers when accessing elements, allowing attackers to read sensitive information by tricking users into running a malicious Silverlight application.

Technical detail

A pointer validation vulnerability in Microsoft Silverlight 5 (before 5.1.20913.0) permits remote code execution context to leak sensitive memory information through a crafted application. The attack vector requires user interaction to load and execute the malicious Silverlight content; impact is confidentiality breach without requiring elevated privileges.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

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."
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected products
n/a · n/a
public PoCs found — 1✓ VexDay Proof
exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/41702
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-087https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19003https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19055https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3896http://www.us-cert.gov/ncas/alerts/TA13-288A