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CISA Known Exploited Vulnerabilities

Microsoft Silverlight Information Disclosure Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV
2022-05-25
Remediation due
2022-06-15

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

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2013-3896

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."

Severity

CVSS 3.1 · CISA5.5 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
SSVC · CISA-ADP
Exploitationactive
Automatableno
Technical impactpartial

Exploitation Context

as of October 15, 2026
All KEV statistics→
  • CISA added CVE-2013-3896 to the KEV catalog 3,150 days after its CVE record was published.
  • It is one of 391 Microsoft entries in the CISA KEV catalog, and one of 166 added in 2022.
  • Its current EPSS score (68.0%) is higher than that of 57% of CISA KEV entries.

Affected Products

ProductAffected versions
-
n/a

References

4 Links
Vendor advisories
Third-party advisories

Record Details

Published
2013-10-09
Last updated
2025-10-22
Assigner (CNA)
microsoft
Credited to
-

More from Microsoft

All Microsoft CVEs→

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.