CVE-2018-0940

high-risk
Published 2018-03-14

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".

Do I need to act?

!
19.9% chance of exploitation in next 30 days
EPSS score — higher than 80% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (6)

Affected Vendors

Microsoft

References (6)

Third Party Advisory http://www.securityfocus.com/bid/103323
Third Party Advisory http://www.securitytracker.com/id/1040521
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0940
Third Party Advisory http://www.securityfocus.com/bid/103323
Third Party Advisory http://www.securitytracker.com/id/1040521
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0940
51
/ 100
high-risk
Severity 24/34 · High
Exploitability 14/34 · Moderate
Exposure 13/34 · Low