CVE-2026-77907: Microsoft Visual Studio 2026

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.

Affected products

• Microsoft Visual Studio 2026: from 18.9.0, before 18.9.3 (fixed in 18.9.3)

Published 2026-09-08. Last modified 2026-09-10.