CVE-2018-0940

Name: CVE-2018-0940
Creator: NVD / NIST
Published: 2018-03-14T17:29:03.827+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 7.57%

Last modified Jun 17, 2026

CVE-2018-0940 is a vulnerability of currently unknown severity. Microsoft Exchange Outlook Web Access (OWA) in Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 20, Microsoft Exchange Server 2013 Cumulative Update 18, Microsoft Exchange Server 2013 Cumulative Update 19, Microsoft Exchange Server 2013 Service Pack 1, Microsoft Exchange Server 2016 Cumulative Update 7, and Microsoft Exchange Server 2016 Cumulative Update 8 allows an elevation of privilege vulnerability due to how links in the body of an email message are rewritten, aka "Microsoft Exchange Elevation of Privilege Vulnerability".. EPSS estimates a 7.57% chance of exploitation in the next 30 days.

Description

Microsoft Exchange Outlook Web Access (OWA) in Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 20, Microsoft Exchange Server 2013 Cumulative Update 18, Microsoft Exchange Server 2013 Cumulative Update 19, Microsoft Exchange Server 2013 Service Pack 1, Microsoft Exchange Server 2016 Cumulative Update 7, and Microsoft Exchange Server 2016 Cumulative Update 8 allows an elevation of privilege vulnerability due to how links in the body of an email message are rewritten, aka "Microsoft Exchange Elevation of Privilege Vulnerability".

Metrics

EPSS Probability

7.57%

93.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions	Update
Microsoft	Exchange Server	2010	Sp3 Rollup20
Microsoft	Exchange Server	2013	Cumulative Update 18
Microsoft	Exchange Server	2016	Cumulative Update 7

References

http://www.securityfocus.com/bid/103323Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040521Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0940Patch, Vendor Advisory
http://www.securityfocus.com/bid/103323Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040521Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0940Patch, Vendor Advisory

Timeline

Published: Mar 14, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0940?

How severe is CVE-2018-0940?

Severity scoring for CVE-2018-0940 is pending analysis. The EPSS model estimates a 7.57% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0940?

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-2018-0940?

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

Scan your code now

Source: NVD / NIST