CVE-2017-11863

Microsoft Edge Security Feature Bypass Vulnerability

CVE-2017-11863 is fixed in 11 products on 1 platform, first by KB4048952, released November 14, 2017. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
4.2
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0349
89th percentile

<p>A security feature bypass vulnerability exists in Microsoft Edge when the Edge <a href="https://technet.microsoft.com/en-us/library/security/dn848375.aspx#CSP">Content Security Policy (CSP)</a> fails to properly validate certain specially crafted documents. An attacker who exploited the bypass could trick a user into loading a page containing malicious content.</p> <p>To exploit the bypass, an attacker must trick a user into either loading a page containing malicious content or visiting a malicious website. The attacker could also inject the malicious page into either a compromised website or an advertisement network.</p> <p>The security update addresses the bypass by correcting how the Edge CSP validates documents.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for 32-bit Systems 10586.1232 KB4048952 Nov 14, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for x64-based Systems 10586.1232 KB4048952 Nov 14, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems 14393.1884 KB4048953 Nov 14, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems 14393.1884 KB4048953 Nov 14, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems KB4048954 Nov 14, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems KB4048954 Nov 14, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems 16299.64 KB4048955 Nov 14, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems 16299.64 KB4048955 Nov 14, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems 10240.17673 KB4048956 Nov 14, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems 10240.17673 KB4048956 Nov 14, 2017
Microsoft Edge (EdgeHTML-based) on Windows Server 2016 14393.1884 KB4048953 Nov 14, 2017

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