CVE-2016-3255: Microsoft .NET Framework

High severity, CVSS 7.5. EPSS: 24.7% chance of exploitation in the next 30 days.

Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, and 4.6.1 allows remote attackers to read arbitrary files via XML data containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, aka ".NET Information Disclosure Vulnerability."

Affected products

• Microsoft .NET Framework: version 2.0 only; version 3.5 only; version 3.5.1 only; version 4.5.2 only; version 4.6 only; version 4.6.1 only

Published 2016-07-13. Last modified 2026-06-17.