CVE-2026-45584

CVSS Score & Metrics

Base Score

8.1 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H                                    

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

Published Date

May 20, 2026

Last Modified

May 20, 2026

CWE ID

CWE-122

Source

NVD

Vendor

microsoft

Product

malware_protection_engine