CVE-2017-8621

Description

Microsoft Exchange Server 2010 SP3, Exchange Server 2013 SP3, Exchange Server 2013 CU16, and Exchange Server 2016 CU5 allows an open redirect vulnerability that could lead to spoofing, aka "Microsoft Exchange Open Redirect Vulnerability".

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.92% Top 30%
Vendor Advisory microsoft.com
Affected: Microsoft Corporation Microsoft Exchange Server 2010 SP3, Exchange Server 2013 SP3, Exchange Server 2013 CU16, and Exchange Server 2016 CU5.
Published at:
Updated at:

References

Link Tags
https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8621 patch vendor advisory
http://www.securitytracker.com/id/1038852 vdb entry third party advisory
http://www.securityfocus.com/bid/99533 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-8621?
CVE-2017-8621 has been scored as a medium severity vulnerability.
How to fix CVE-2017-8621?
To fix CVE-2017-8621, 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-2017-8621 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-8621 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-8621?
CVE-2017-8621 affects Microsoft Corporation Microsoft Exchange Server 2010 SP3, Exchange Server 2013 SP3, Exchange Server 2013 CU16, and Exchange Server 2016 CU5..
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