CVE-2026-96957: Microsoft .net

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.

Affected products

• Microsoft .net: from 10.0.0, before 10.0.13 (fixed in 10.0.13); version 11.0.0 only
• Microsoft Visual Studio 2022: from 17.14.0, before 17.14.42 (fixed in 17.14.42)
• Microsoft Visual Studio 2026: from 18.10.0, before 18.10.4 (fixed in 18.10.4)

Published 2026-10-13. Last modified 2026-10-16.