CVE-2021-42305

Medium (6.5) in microsoft exchange server. EPSS 7.9% chance of exploitation in the next 30 days.

EPSS

7.9% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-31)

Published

2021-11-10

Modified

2026-08-19

Record from

the NVD, synced 2026-10-19

Affected

• microsoft:exchange_server

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42305
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42305

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