What is CVE-2018-8153?

CVE-2018-8153 is a medium-severity vulnerability in Microsoft Exchange_server, classified under Authentication Bypass by Spoofing. CVSS score: 5.4/10. Published 2018-05-09.

How severe is CVE-2018-8153?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in Microsoft Exchange_server

CVE-2018-8153

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 affects Microsoft Exchange Server.

EPSS: 0.035 (87.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Microsoft Exchange_server — versions 2016
Microsoft Exchange Server — versions 2016 Cumulative Update 8, 2016 Cumulative Update 9

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
secure@microsoft.com (x_refsource_CONFIRM, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2018-8153?: CVE-2018-8153 is a medium-severity vulnerability in Microsoft Exchange_server, classified under Authentication Bypass by Spoofing. CVSS score: 5.4/10. Published 2018-05-09.
How severe is CVE-2018-8153?: Medium severity. CVSS v3 base score is 5.4 out of 10.