CVE-2018-0949

Internet Explorer Security Feature Bypass Vulnerability

CVE-2018-0949 is fixed in 21 products on 1 platform, first by KB4338814, released July 10, 2018. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent
CVSS
2.4
Low
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.1203
96th percentile

<p>A security feature bypass vulnerability exists when Microsoft Internet Explorer improperly handles requests involving UNC resources. An attacker who successfully exploited the vulnerability could force the browser to load data that would otherwise be restricted.</p> <p>In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Internet Explorer and then convince a user to view the website. The attacker could also take advantage of compromised websites, and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.</p> <p>The security update addresses the vulnerability by modifying how affected Microsoft Internet Explorer handles requests involving UNC resources.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Internet Explorer 10 on Windows Server 2012 KB4338830 Jul 10, 2018
Internet Explorer 10 on Windows Server 2012 KB4339093 Jul 10, 2018
Internet Explorer 10 on Windows Server 2012 KB4338816 Jul 10, 2018
Internet Explorer 10 on Windows Server 2012 KB4345425 Jul 10, 2018
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 14393.2368 KB4345418 Jul 16, 2018
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 14393.2363 KB4338814 Jul 10, 2018
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 14393.2368 KB4345418 Jul 16, 2018
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 14393.2363 KB4338814 Jul 10, 2018
Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems 15063.1209 KB4345419 Jul 16, 2018
Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems 15063.1206 KB4338826 Jul 10, 2018
Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems 15063.1209 KB4345419 Jul 16, 2018
Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems 15063.1206 KB4338826 Jul 10, 2018
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems 16299.551 KB4345420 Jul 16, 2018
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems 16299.547 KB4338825 Jul 10, 2018
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems 16299.551 KB4345420 Jul 16, 2018
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems 16299.547 KB4338825 Jul 10, 2018
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems 17134.167 KB4345421 Jul 16, 2018
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems 17134.165 KB4338819 Jul 10, 2018
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems 17134.167 KB4345421 Jul 16, 2018
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems 17134.165 KB4338819 Jul 10, 2018
Internet Explorer 11 on Windows 10 for 32-bit Systems 10240.17918 KB4345455 Jul 16, 2018
Internet Explorer 11 on Windows 10 for 32-bit Systems 10240.17914 KB4338829 Jul 10, 2018
Internet Explorer 11 on Windows 10 for x64-based Systems 10240.17918 KB4345455 Jul 16, 2018
Internet Explorer 11 on Windows 10 for x64-based Systems 10240.17914 KB4338829 Jul 10, 2018
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 KB4339093 Jul 10, 2018
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 KB4338818 Jul 10, 2018
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 KB4338821 Jul 10, 2018
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 KB4345459 Jul 10, 2018
Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 KB4339093 Jul 10, 2018
Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 KB4338818 Jul 10, 2018
Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 KB4338821 Jul 10, 2018
Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 KB4345459 Jul 10, 2018
Internet Explorer 11 on Windows 8.1 for 32-bit systems KB4338815 Jul 10, 2018
Internet Explorer 11 on Windows 8.1 for 32-bit systems KB4338831 Jul 10, 2018
Internet Explorer 11 on Windows 8.1 for 32-bit systems KB4339093 Jul 10, 2018
Internet Explorer 11 on Windows 8.1 for 32-bit systems KB4345424 Jul 10, 2018
Internet Explorer 11 on Windows 8.1 for x64-based systems KB4338815 Jul 10, 2018
Internet Explorer 11 on Windows 8.1 for x64-based systems KB4338831 Jul 10, 2018
Internet Explorer 11 on Windows 8.1 for x64-based systems KB4339093 Jul 10, 2018
Internet Explorer 11 on Windows 8.1 for x64-based systems KB4345424 Jul 10, 2018
Internet Explorer 11 on Windows RT 8.1 KB4338815 Jul 10, 2018
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4339093 Jul 10, 2018
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4338818 Jul 10, 2018
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4338821 Jul 10, 2018
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4345459 Jul 10, 2018
Internet Explorer 11 on Windows Server 2012 R2 KB4338815 Jul 10, 2018
Internet Explorer 11 on Windows Server 2012 R2 KB4338831 Jul 10, 2018
Internet Explorer 11 on Windows Server 2012 R2 KB4339093 Jul 10, 2018
Internet Explorer 11 on Windows Server 2012 R2 KB4345424 Jul 10, 2018
Internet Explorer 11 on Windows Server 2016 14393.2368 KB4345418 Jul 16, 2018
Internet Explorer 11 on Windows Server 2016 14393.2363 KB4338814 Jul 10, 2018
Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4339093 Jul 10, 2018
Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4339093 Jul 10, 2018

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