CVE-2019-1233

7.5 highEPSS 6.2%

High (7.5) in microsoft exchange server. EPSS 6.2% chance of exploitation in the next 30 days.

A denial of service vulnerability exists in Microsoft Exchange Server software when the software fails to properly handle objects in memory, aka 'Microsoft Exchange Denial of Service Vulnerability'.

Severity

CVSS 3.1

7.5 high

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

EPSS: 6.2% chance of exploitation in the next 30 days; higher than 93% of CVEs (scores of 2026-10-31)
Published: 2019-09-11
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-2019-1233
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1233

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