CISA-confirmed known exploited vulnerability

CVE-2016-0034

Microsoft Silverlight Runtime Remote Code Execution Vulnerability

Microsoft · Silverlight

Vulnerability details

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

Added to CISA KEV: 2022-05-25

Ransomware campaign use: Known

CISA due date: 2022-06-15

Defensive guidance from CISA

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

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

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