CVE-2026-69806: Microsoft .net

High severity, CVSS 7.0. EPSS: 0.8% chance of exploitation in the next 30 days.

Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.

Affected products

• Microsoft .net: from 9.0.0, before 9.0.20 (fixed in 9.0.20); from 10.0.0, before 10.0.12 (fixed in 10.0.12); version 11.0.0 only
• Microsoft Visual Studio 2022: from 17.14.0, before 17.14.40 (fixed in 17.14.40)
• Microsoft Visual Studio 2026: from 18.9.0, before 18.9.3 (fixed in 18.9.3)

Published 2026-09-08. Last modified 2026-09-29.