MP
Product
Malware Protection Engine
by Microsoft · last CVE Aug 14, 2026
On CISA KEVExploited in the wild
31
CVEs
2
On KEV
8.1
Max CVSS
0
New 30D
Severity mix
Critical 0High 20Medium 5Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2023-23389
6.3
0%
Mar 14
Microsoft Defender Elevation of Privilege Vulnerability
Affected: 1.1.20000.2
CVE-2022-24548
5.5
3%
Apr 15
Microsoft Defender Denial of Service Vulnerability
Affected: before 1.1.19100.5
CVE-2021-31978
5.5
1%
Jun 8
Microsoft Defender Denial of Service Vulnerability
Affected: before 1.1.18200.3
CVE-2017-8542
5.5
6%
May 26
The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows…
Affected: through 1.1.13704.0
CVE-2017-8539
5.5
6%
May 26
The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows…
Affected: through 1.1.13704.0
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