CVE-2019-1233

HIGHCVSS 7.5/10EPSS 5.77%

Last modified

CVE-2019-1233 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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'.. EPSS estimates a 5.77% chance of exploitation in the next 30 days.

Description

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'.

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
5.77%

92.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersionsUpdate
MicrosoftExchange Server2016Cumulative Update 12
MicrosoftExchange Server2019Cumulative Update 1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-1233?
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'.
How severe is CVE-2019-1233?
CVE-2019-1233 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 5.77% probability of exploitation in the next 30 days.
How do I fix CVE-2019-1233?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-1233?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST