VULNERABILITY INTELLIGENCE

CVE-2018-8558

CVSS score6.5 MEDIUM

EPSS probability5.58%

CISA KEVNot currently listed

Published2018-11-14

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

An information disclosure vulnerability exists when Microsoft Outlook fails to respect "Default link type" settings configured via the SharePoint Online Admin Center, aka "Microsoft Outlook Information Disclosure Vulnerability." This affects Office 365 ProPlus, Microsoft Office. This CVE ID is unique from CVE-2018-8579.

Weakness classification

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Primary references

secure@microsoft.com — Third Party Advisory, VDB Entry
secure@microsoft.com — Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory