CVE-2023-21809

High (7.8) in microsoft defender security intelligence updates. EPSS 0.6% chance of exploitation in the next 30 days.

EPSS

0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)

Published

2023-02-14

Modified

2026-08-19

Record from

the NVD, synced 2026-10-19

Affected

• microsoft:defender_security_intelligence_updates

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21809
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21809

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