Microsoft Silverlight Runtime Remote Code Execution Vulnerability (CVE-2016-0034)
Severity: high · Patch status: unpatched · Since 2022-05-25 · CVE-2016-0034
Microsoft Silverlight mishandles negative offsets during decoding, which allows attackers to execute remote code or cause a denial-of-service (DoS). CISA added CVE-2016-0034 to its Known Exploited Vulnerabilities catalog on May 25, 2022, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- The impacted products are end-of-life and should be disconnected if still in use.
- US federal agencies must remediate by Jun 15, 2022 (BOD 22-01); treat that as the outer limit.
Sources
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