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Vulnerability record · CVE-2018-8305 · published 11 July 2018

CVE-2018-8305: Microsoft windows calendar information exposure vulnerability

Microsoft · Windows Calendar

An information disclosure vulnerability exists in Windows Mail Client when a message is opened, aka "Windows Mail Client Information Disclosure Vulnerability." This affects Mail, Calendar, and People in Windows 8.1 App Store.

6.5 CVSS 3.0 Medium EPSS 8.4% · top 5.2% CWE-200 · Information exposure
6.5CVSS 3.0 base score, v2 4.3
8.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

An information disclosure vulnerability exists in Windows Mail Client when a message is opened, aka "Windows Mail Client Information Disclosure Vulnerability." This affects Mail, Calendar, and People in Windows 8.1 App Store.

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/104618 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041270 Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8305 Vendor Advisory
http://www.securityfocus.com/bid/104618 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041270 Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8305 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-8305), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.