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WD
Product
Windows Defender
by Microsoft · last CVE Oct 13, 2026
On CISA KEVExploited in the wild
29
CVEs
2
On KEV
8.8
Max CVSS
1
New 30D
Vulnerabilities29In the news0Timeline
Severity mix
Critical 0High 17Medium 6Low 0
Severity
All severities29Critical0High17Medium6Low0
Exploitation
On CISA KEV2Exploited in the wild2
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2021-1647
In wildKEV
7.8
40%
Jan 12
Microsoft Defender Remote Code Execution Vulnerability
Affected: All versions, or not specified
CVE-2017-8540
In wildKEV
7.8
72%
May 26
Microsoft Malware Protection Engine Improper Restriction of Operations Vulnerability
Affected: All versions, or not specified
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