CVE-2021-42298

High (7.8) in microsoft malware protection engine. EPSS 5.8% chance of exploitation in the next 30 days.

EPSS

5.8% chance of exploitation in the next 30 days; higher than 93% of CVEs (scores of 2026-10-31)

CWE

CWE-94

Published

2021-11-10

Modified

2026-08-19

Record from

the NVD, synced 2026-10-19

Affected

• microsoft:malware_protection_engine

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42298
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42298

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