CVE-2016-3293

Microsoft Browser Memory Corruption Vulnerability

CVE-2016-3293 is fixed in 24 products on 1 platform, first by KB3176493, released August 9, 2016. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent
CVSS
7.1
Critical
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.1473
96th percentile

<p>A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory. The vulnerability could corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, the attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>An attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft browsers, and then convince a user to view the website. The attacker could also take advantage of compromised websites, or websites that accept or host user-provided content or advertisements, by adding specially crafted content that could exploit the vulnerability. In all cases, however, an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically via an enticement in email or instant message, or by getting them to open an email attachment.</p> <p>The security update addresses the vulnerability by modifying how Microsoft browsers handle objects in memory.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Internet Explorer 10 on Windows Server 2012 KB3175443 Aug 9, 2016
Internet Explorer 11 on Windows 10 Version 1511 for 32-bit Systems 10586.545 KB3176493 Aug 9, 2016
Internet Explorer 11 on Windows 10 Version 1511 for x64-based Systems 10586.545 KB3176493 Aug 9, 2016
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 14393.51 KB3176495 Aug 9, 2016
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 14393.51 KB3176495 Aug 9, 2016
Internet Explorer 11 on Windows 10 for 32-bit Systems 10240.17071 KB3176492 Aug 9, 2016
Internet Explorer 11 on Windows 10 for x64-based Systems 10240.17071 KB3176492 Aug 9, 2016
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 KB3175443 Aug 9, 2016
Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 KB3175443 Aug 9, 2016
Internet Explorer 11 on Windows 8.1 for 32-bit systems KB3175443 Aug 9, 2016
Internet Explorer 11 on Windows 8.1 for x64-based systems KB3175443 Aug 9, 2016
Internet Explorer 11 on Windows RT 8.1 KB3175443 Aug 9, 2016
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB3175443 Aug 9, 2016
Internet Explorer 11 on Windows Server 2012 R2 KB3175443 Aug 9, 2016
Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB3175443 Aug 9, 2016
Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 KB3175443 Aug 9, 2016
Internet Explorer 9 on Windows Vista Service Pack 2 KB3175443 Aug 9, 2016
Internet Explorer 9 on Windows Vista x64 Edition Service Pack 2 KB3175443 Aug 9, 2016
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for 32-bit Systems 10586.545 KB3176493 Aug 9, 2016
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for x64-based Systems 10586.545 KB3176493 Aug 9, 2016
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems 14393.51 KB3176495 Aug 9, 2016
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems 14393.51 KB3176495 Aug 9, 2016
Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems 10240.17071 KB3176492 Aug 9, 2016
Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems 10240.17071 KB3176492 Aug 9, 2016