CVE-2013-3896
Microsoft Silverlight Information Disclosure Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 15 June 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- EPSS
- 67.96% probability · 99th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 12 March 2013
- CISA KEV
- Listed 25 May 2022 · due 15 June 2022
- Affected
- microsoft/silverlight
- Source
- secure@microsoft.com
EPSS moved from 68.0% on 24 September 2026 to 68.0% on 30 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
CISA notes
The impacted product is end-of-life and should be disconnected if still in use. https://nvd.nist.gov/vuln/detail/CVE-2013-3896
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.us-cert.gov/ncas/alerts/TA13-288AThird Party Advisory, US Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-087Patch, Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19003Broken Link
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19055Broken Link
- http://www.us-cert.gov/ncas/alerts/TA13-288AThird Party Advisory, US Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-087Patch, Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19003Broken Link
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19055Broken Link
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3896US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.