CVE-2026-45584 — Microsoft Defender Remote Code Execution Vulnerability

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

Published: 2026-05-20 · CVSS: 8.1 · CVSS 3.1

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

Original CVE JSON · STIX 2.1

Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7