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Microsoft Security Response CenterCVE-2026-77907

Visual Studio Remote Code Execution Vulnerability

HighVendor CVSS 8.8 / 10 1 CVE Published Sep 8, 2026 at 7:00 AM UTC

Summary

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

Products covered

  • Microsoft Visual Studio 2026 version 18.9

Remediation

Release Notes

Vendor-listed fixes

  • 18.9.3

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.