CVE-2018-8153

MEDIUMNVD 5.4

5.4

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.

CVSS v3: 5.4
EG Score: —
EPSS: 81.2%
KEV: Not listed

Published

May 9, 2018

Last Modified

November 21, 2024

References (6)

secure@microsofthttp://www.securityfocus.com/bid/104045
secure@microsofthttp://www.securitytracker.com/id/1040850
secure@microsofthttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8153
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/104045
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1040850
af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8153

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-290Authentication Bypass by Spoofing

Data Freshness Timeline

(refreshed 5× in last 7d / 5× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2018-8153?

CVE-2018-8153 is a medium vulnerability published on May 9, 2018. 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.

When was CVE-2018-8153 disclosed?

CVE-2018-8153 was first published in the National Vulnerability Database on May 9, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-8153 actively exploited?

CVE-2018-8153 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 81.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-8153?

CVE-2018-8153 has a CVSS v3 base score of 5.4 (NVD).

How do I remediate CVE-2018-8153?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-8153, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2018-8153

📅 Published

🔄 Last Modified

🔗 References (6)