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Vulnerability record · CVE-2016-3299 · published 9 August 2016

CVE-2016-3299: Microsoft windows 10 improper access control vulnerability

Microsoft · Windows 10

Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 allow remote attackers to hijack network traffic or bypass intended Enhanced Protected Mode (EPM) or application container protection mechanisms, and consequently render untrusted content in a browser, by leveraging how NetBIOS validates responses, aka "NetBIOS Spoofing Vulnerability."

5.3 CVSS 3.0 Medium EPSS 14% · top 3.7% CWE-284 · Improper access control
5.3CVSS 3.0 base score, v2 4.3
14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 allow remote attackers to hijack network traffic or bypass intended Enhanced Protected Mode (EPM) or application container protection mechanisms, and consequently render untrusted content in a browser, by leveraging how NetBIOS validates responses, aka "NetBIOS Spoofing Vulnerability."

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

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/92387
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-077
http://www.securityfocus.com/bid/92387
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-077

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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-2016-3299), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.