Back to search
CVE-2026-45584
Published: May 20, 2026
Modified: Jun 5, 2026
PUBLISHED
CVSS v3.1
8.1
HIGH
Description
Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network.
| Vendor | Product | Versions |
|---|---|---|
Microsoft | Microsoft Malware Protection Engine | affected 1.1.0.0 - < 1.1.26040.8 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
References
Microsoft Defender Remote Code Execution Vulnerability
vendor-advisory
patch
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now