CVE-2017-0233

Microsoft Edge Elevation of Privilege Vulnerability

CVE-2017-0233 is fixed in 8 products on 1 platform, first by KB4019473, released May 9, 2017. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent
CVSS
4.2
Important
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0308
87th percentile

<p>An elevation of privilege vulnerability exists in Microsoft Edge that could allow an attacker to escape from the AppContainer sandbox in the browser. An attacker who successfully exploited this vulnerability could gain elevated privileges and break out of the Edge AppContainer sandbox.</p> <p>The vulnerability by itself does not allow arbitrary code to run. However, this vulnerability could be used in conjunction with one or more vulnerabilities (for example a remote code execution vulnerability and another elevation of privilege vulnerability) to take advantage of the elevated privileges when running.</p> <p>The security update addresses the vulnerability by modifying how Microsoft Edge handles sandboxing.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for 32-bit Systems 10586.916 KB4019473 May 9, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for x64-based Systems 10586.916 KB4019473 May 9, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems 14393.1198 KB4019472 May 9, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems 14393.1198 KB4019472 May 9, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems KB4016871 May 9, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems KB4016871 May 9, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems 10240.17394 KB4019474 May 9, 2017
Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems 10240.17394 KB4019474 May 9, 2017

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