CVE-2020-17144

High (8.4) in Microsoft Exchange Server. In CISA KEV since 2021-11-03. EPSS 37% chance of exploitation in the next 30 days.

EPSS

37% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)

CISA KEV

listed 2021-11-03, due 2022-05-03

CWE

CWE-502

Published

2020-12-10

Modified

2026-06-17

Record from

the NVD, synced 2026-10-19

Affected

• microsoft:exchange_server

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17144
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17144
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-17144

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