Microsoft Defender Denial of Service Vulnerability

Exploited in the wild. Listed by CISA on 2026-05-20; known to be used by ransomware.

63.1%likelihood of exploitation, next 30 days

99%of all CVEs are less likely

Nonecheck to confirm it

Microsoft Defender contains an unspecified vulnerability that allows for denial of service.

No ready check is stored for this CVE. Confirm it by hand from the references.

References

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