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CVE-2016-0034

Microsoft Silverlight 5 before 5.1.41212.0 mishandles negative offsets during decoding, which...

8.8 HighIn KEV

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."

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

69.4%Up 30.7 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 8.8

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."

Record
CVE-2016-0034
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Updated
2026-11-02
CVE List 8.8

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."

Record
CVE-2016-0034
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
EUVDEUVD-2016-0072 8.8

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."

Record
EUVD-2016-0072
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-8wh9-64cq-2gj5 8.8

Microsoft Silverlight 5 before 5.1.41212.0 mishandles negative offsets during decoding, which...

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."

Record
GHSA-8wh9-64cq-2gj5
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
CISA KEV No score

Microsoft Silverlight Runtime Remote Code Execution Vulnerability

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

Record
CVE-2016-0034
Weakness
CWE-20
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
exploitation
first indexedCVE List, EUVD, GitHub Advisories, CISA KEV, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-0034 is a high vulnerability (CVSS 8.8) in Microsoft Silverlight, published January 13, 2016. CISA lists it as known to be exploited, since May 25, 2022. EUVD reports exploitation since May 25, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 69.4%, the 99th percentile. No source names a fixed version.

References

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