CVE-2021-26854

Medium (6.6) in microsoft exchange server. EPSS 25% chance of exploitation in the next 30 days.

EPSS

25% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-11-01)

Published

2021-03-03

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-2021-26854
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26854

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