May 25, 2022 · Applied Cybernetics Group
CVE-2016-0034 — Microsoft Silverlight
known ransomware use
Microsoft Silverlight Runtime Remote Code Execution Vulnerability
- Added to KEV
2022-05-25- Federal due date
2022-06-15- Vendor
- Microsoft
- Product
- Silverlight
- EPSS
- 99.3th percentile (score 0.696, as of
2026-09-16) - NVD CVSS v3.1
- 8.8 (HIGH)
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2016-0034
CISA short description
Microsoft Silverlight mishandles negative offsets during decoding, which allows attackers to execute remote code or cause a denial-of-service (DoS).
Required action
The impacted products are end-of-life and should be disconnected if still in use.
NVD description
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."