Findings

CVE-2016-0034

Microsoft Silverlight Runtime Remote Code Execution Vulnerability

Published Jan 12, 2016 · updated Aug 13, 2026 · microsoft silverlight

Microsoft Silverlight 5 before 5.1.41212.0 mishandles negative offsets during decoding, which allows remote attackers to execute arbitrary code or cause a denial of service (object-header corruption) via a crafted web site, aka "Silverlight Runtime Remote Code Execution Vulnerability."

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 12, 2016 · Catalog

    Detected

    Microsoft Silverlight 5 before 5.1.41212.0 mishandles negative offsets during decoding, which allows remote attackers to execute arbitrary code or cause a denial of service (object-header corruption) via a crafted web site, aka "Silverlight Runtime Remote Code Execution Vulnerability."

  2. May 25, 2022 · CISA KEV

    Known exploited

    The impacted products are end-of-life and should be disconnected if still in use.

  3. Jun 15, 2022 · CISA KEV

    Remediation due

    The impacted products are end-of-life and should be disconnected if still in use.

  4. Aug 13, 2026 · Catalog

    Updated

    Microsoft Silverlight 5 before 5.1.41212.0 mishandles negative offsets during decoding, which allows remote attackers to execute arbitrary code or cause a denial of service (object-header corruption) via a crafted web site, aka "Silverlight Runtime Remote Code Execution Vulnerability."

Required action

The impacted products are end-of-life and should be disconnected if still in use.

CISA due date Jun 15, 2022

Affected

  • cpe microsoft/silverlightversion unspecified
  • vendor Microsoft Silverlightversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2016-0034

    Microsoft Silverlight mishandles negative offsets during decoding, which allows attackers to execute remote code or cause a denial-of-service (DoS).

    cisa.gov
  • CVE.orgVulnerability recordCVE-2016-0034

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2016-0034

    30-day exploitation probability 69.4%

    first.org
  • NIST NVDVulnerability recordCVE-2016-0034

    Microsoft Silverlight 5 before 5.1.41212.0 mishandles negative offsets during decoding, which allows remote attackers to execute arbitrary code or cause a denial of service (object-header corruption) via a crafted web site, aka "Silverlight Runtime Remote Code Execution Vulnerabi

    nvd.nist.gov

References

CVE-2016-0034 · ZeroDay Findings