CVE-2018-8305

mediumpriority · track · 29EPSS 0.086 · 95 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

8.59% (95th) EPSS

CVSS 4.3 · medium

Is it mine?

4 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.06mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USprimary

affected products (4)

Products and version ranges known to be affected.

Microsoft Mail, Calendar, and People in Windows 8.1 App Store≤ Mail, Calendar, and People in Windows 8.1 App Storeenisa_euvdEU
microsoft windows calendarall versionsnvdUScpe:2.3:a:microsoft:windows_calendar:*:*:*:*:*:*:*:*
microsoft windows mailall versionsnvdUScpe:2.3:a:microsoft:windows_mail:*:*:*:*:*:*:*:*
microsoft windows peopleall versionsnvdUScpe:2.3:a:microsoft:windows_people:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2018-07-11modified 2026-06-17

related (19,398)

Related entries.

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CVE-2025-68686US	—OT critical	29.5% (98th)	KEV	2026-02-10
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Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.

+19393 more

references (7)

External citations — patches, advisories, analysis.

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

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