ACTIVELY EXPLOITED
CVE-2016-0034: Microsoft Silverlight Runtime Remote Code Execution Vulnerability
| Vendor | Microsoft |
|---|---|
| Product | Silverlight |
| Actively exploited | Yes |
| Added to CISA KEV | 25 May 2022 |
| CISA federal deadline | 15 Jun 2022 |
| Ransomware use | Known |
| Weakness (CWE) | CWE-20 |
Required action (CISA's text)
The impacted products are end-of-life and should be disconnected if still in use.
Description (NVD)
Microsoft Silverlight mishandles negative offsets during decoding, which allows attackers to execute remote code or cause a denial-of-service (DoS).
SOURCES
Other Microsoft flaws
- patchtuesday:2026-11: Vulnerability in Microsoft
- CVE-2026-124194: Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability
- CVE-2026-96951: Microsoft Windows Command Injection Vulnerability
- CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability
- CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.