CVE-2019-1373

9.8 criticalEPSS 22%

Critical (9.8) in microsoft exchange server. EPSS 22% chance of exploitation in the next 30 days.

A remote code execution vulnerability exists in Microsoft Exchange through the deserialization of metadata via PowerShell, aka 'Microsoft Exchange Remote Code Execution Vulnerability'.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 22% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)
CWE: CWE-502
Published: 2019-11-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

microsoft:exchange_server

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1373
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1373

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