CISA KEV · Known exploitedMedium

CVE-2013-3896

Microsoft Silverlight

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
5.5
EPSS
69.6%
99.3% percentile
CISA KEV
Listed
Published
2013.10.09
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability69.6%
Technical severityCVSS 5.5

Vulnerability overview

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 product and versions

Product
Microsoft Silverlight
Affected versions
>= 5.0 < 5.1.20913.0
Fixed versions
5.1.20913.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

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

Due date: 2022.06.15
  1. 1
    Identify

    Confirm that Microsoft Silverlight and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE
CWE-20
KEV added
2022.05.25
Ransomware use
미확인
CVE-2013-3896 — Microsoft Silverlight | SECUFOCUS NOW