Description
Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network.
Published: 2026-05-20
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 20 May 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 20 May 2026 13:15:00 +0000

Type Values Removed Values Added
Description Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network.
Title Microsoft Defender Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft malware Protection Engine
Weaknesses CWE-122
CPEs cpe:2.3:a:microsoft:malware_protection_engine:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft malware Protection Engine
References
Metrics cvssV3_1

{'score': 8.1, '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'}


Subscriptions

Microsoft Malware Protection Engine
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-06-19T16:13:10.221Z

Reserved: 2026-05-12T19:55:45.729Z

Link: CVE-2026-45584

cve-icon Vulnrichment

Updated: 2026-05-20T14:49:57.012Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-20T13:16:37.333

Modified: 2026-06-17T10:52:16.373

Link: CVE-2026-45584

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-20T14:45:32Z

Weaknesses