cve 2026 58640

The cve 2026 58640 tag follows Microsoft’s Important-rated Windows NTFS remote code execution vulnerability and the updates released to address it. Coverage identifies the flaw as a heap-based buffer overflow affecting supported and extended-support versions of Windows 10, Windows 11, Windows Server 2012, and Windows Server 2025. It also explains that the issue is not typically a network-reachable, unauthenticated attack: exploitation involves local access, low privileges, and user interaction. The July 14, 2026 cumulative updates are presented as the practical remediation for endpoints and servers that process untrusted files or storage media.