Vulnerability in Microsoft Exchange Server

CVE-2018-0940

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".

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.073 (94.2th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2018-0940: held from 0.073 to 0.073.

EPSS over last 30 days · oldest: 0.073 · newest: 0.073 · change: 0.000

Affected products

  • Microsoft Exchange Server — versions 2010, 2013, 2016
  • Microsoft Corporation Exchange Outlook Web Access (Owa) — versions 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

References

Frequently asked questions

What is CVE-2018-0940?
CVE-2018-0940 is a medium-severity vulnerability in Microsoft Exchange Server. CVSS score: 6.5/10. Published 2018-03-14.
How severe is CVE-2018-0940?
Medium severity. CVSS v3 base score is 6.5 out of 10.