CVE-2013-3896
Microsoft Silverlight Information Disclosure Vulnerability
- Medium 5.5
- Exploited: added to CISA KEV 25 May 2022
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."
Key facts
- Published
- 9 Oct 2013
- Last changed
- 22 Oct 2025
- Assigned by
- microsoft
- KEV added
- 25 May 2022
- KEV fix due
- 15 Jun 2022
- EPSS
- 67.142% likely to be exploited in the next 30 days, higher than 99.312% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: partial
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 5.5CVSS 3.1, Mediumfrom CISA (ADP container)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
What to do
- The impacted product is end-of-life and should be disconnected if still in use.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 9 Oct 2013 Published
- 25 May 2022 CVE-2013-3896 added to CISA KEV
- 25 May 2022 Added to the CISA KEV catalogue