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CVE-2026-45584

nvd nist
Published: May 20, 2026Modified: Jul 23, 2026

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8.1
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.2 / Impact: 5.9
Source: secure@microsoft.com (Secondary)

Description

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

Affected (1)

Microsoft
1 product
Malware Protection Engine
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Malware Protection Engine
From 1.1.26030.3008 to 1.1.26040.8

Related CWEs

CWE-122
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References (1)

Source: secure@microsoft.com
Vendor Advisory

Timeline

No history available yet.