CVE-2019-0817

Description

A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-0858.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.70% Top 20%
Vendor Advisory microsoft.com
Affected: Microsoft Microsoft Exchange Server
Affected: Microsoft Microsoft Exchange Server 2016
Affected: Microsoft Microsoft Exchange Server 2013
Affected: Microsoft Microsoft Exchange Server 2019
Published at:
Updated at:

References

Link Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0817 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-0817?
CVE-2019-0817 has been scored as a medium severity vulnerability.
How to fix CVE-2019-0817?
To fix CVE-2019-0817, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-0817 being actively exploited in the wild?
It is possible that CVE-2019-0817 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-0817?
CVE-2019-0817 affects Microsoft Microsoft Exchange Server, Microsoft Microsoft Exchange Server 2016, Microsoft Microsoft Exchange Server 2013, Microsoft Microsoft Exchange Server 2019.
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