← Vulnerability feed

Vulnerability record · CVE-2016-3387 · published 14 October 2016

CVE-2016-3387: Microsoft edge permissions and access controls vulnerability

Microsoft · Edge

Microsoft Internet Explorer 10 and 11 and Microsoft Edge do not properly restrict access to private namespaces, which allows remote attackers to gain privileges via unspecified vectors, aka "Microsoft Browser Elevation of Privilege Vulnerability," a different vulnerability than CVE-2016-3388.

7.5 CVSS 3.0 High EPSS 20% · top 2.7% CWE-264 · Permissions and access controls
7.5CVSS 3.0 base score, v2 6.8
20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

Microsoft Internet Explorer 10 and 11 and Microsoft Edge do not properly restrict access to private namespaces, which allows remote attackers to gain privileges via unspecified vectors, aka "Microsoft Browser Elevation of Privilege Vulnerability," a different vulnerability than CVE-2016-3388.

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

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/93381
http://www.securitytracker.com/id/1036992
http://www.securitytracker.com/id/1036993
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-118
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-119
https://www.exploit-db.com/exploits/40607/
http://www.securityfocus.com/bid/93381
http://www.securitytracker.com/id/1036992
http://www.securitytracker.com/id/1036993
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-118
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-119
https://www.exploit-db.com/exploits/40607/

Track CVE-2016-3387 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

9.8CVE-2015-0313Adobe Flash Player use-after-free allows remote code executionAdobe Flash Player contains a use-after-free (CWE-416) flaw reachable through unspecified vectors. It affects Flash Player before 13.0.0.269 and 14.x…KEVEPSS 95%analysed9.8CVE-2015-0311Adobe Flash Player unspecified flaw allows remote code executionCVE-2015-0311 is an unspecified vulnerability in Adobe Flash Player affecting versions through 13.0.0.262, 14.x, 15.x, and 16.x through 16.0.0.287 on…KEVEPSS 86%analysed9.8CVE-2014-1776Internet Explorer use-after-free in CMarkup::IsConnectedToPrimaryMarkupMicrosoft Internet Explorer 6 through 11 contains a use-after-free in the CMarkup::IsConnectedToPrimaryMarkup function that allows remote code execut…KEVEPSS 83%analysed9.6CVE-2024-7971Google Chrome V8 type confusion enables heap corruptionChrome's V8 JavaScript engine contains a type confusion flaw (CWE-843) that lets a crafted HTML page corrupt the heap. It affects Chrome before 128.0…KEVEPSS 21%analysed9.6CVE-2022-4135Google Chrome GPU heap buffer overflow enables sandbox escapeChrome's GPU component contains a heap buffer overflow (CWE-787) fixed in version 107.0.5304.121. An attacker who already controls the renderer proce…KEVEPSS 32%analysed8.8CVE-2023-5217libvpx VP8 encoding heap buffer overflow exploited via crafted HTMLA heap buffer overflow in the VP8 encoder in libvpx affects Google Chrome before 117.0.5938.132 and libvpx 1.13.1, and is reachable through a crafted…KEVEPSS 49%analysed8.8CVE-2021-27085Microsoft Internet Explorer remote code execution flawCVE-2021-27085 is a remote code execution vulnerability in Microsoft Internet Explorer. The record gives only a one-line description and no root-caus…KEVEPSS 5.4%analysed8.8CVE-2021-26411Microsoft Internet Explorer and Edge use-after-free memory corruptionCVE-2021-26411 is a use-after-free (CWE-416) memory corruption flaw in Microsoft Internet Explorer, with Microsoft Edge also listed as an affected pr…KEVEPSS 81%analysed

Source: NIST National Vulnerability Database (record CVE-2016-3387), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.