CVE-2017-0238

Microsoft Edge Memory Corruption Vulnerability

CVE-2017-0238 is fixed in 21 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
0.1807
97th percentile

<p>A remote code execution vulnerability exists when Microsoft Edge improperly accesses objects in memory. The vulnerability could corrupt memory in such a way that enables 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, an 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 Edge, 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 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 by way of enticement in an email or Instant Messenger message, or by getting them to open an attachment sent through email.</p> <p>The security update addresses the vulnerability by modifying how Microsoft Edge handles objects in memory.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Internet Explorer 10 on Windows Server 2012 KB4018271 May 9, 2017
Internet Explorer 10 on Windows Server 2012 KB4019216 May 9, 2017
Internet Explorer 11 on Windows 10 Version 1511 for 32-bit Systems 10586.916 KB4019473 May 9, 2017
Internet Explorer 11 on Windows 10 Version 1511 for x64-based Systems 10586.916 KB4019473 May 9, 2017
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 14393.1198 KB4019472 May 9, 2017
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 14393.1198 KB4019472 May 9, 2017
Internet Explorer 11 on Windows 10 for 32-bit Systems 10240.17394 KB4019474 May 9, 2017
Internet Explorer 11 on Windows 10 for x64-based Systems 10240.17394 KB4019474 May 9, 2017
Internet Explorer 11 on Windows 8.1 for 32-bit systems KB4018271 May 9, 2017
Internet Explorer 11 on Windows 8.1 for 32-bit systems KB4019215 May 9, 2017
Internet Explorer 11 on Windows 8.1 for x64-based systems KB4018271 May 9, 2017
Internet Explorer 11 on Windows 8.1 for x64-based systems KB4019215 May 9, 2017
Internet Explorer 11 on Windows RT 8.1 KB4019215 May 9, 2017
Internet Explorer 11 on Windows Server 2012 R2 KB4018271 May 9, 2017
Internet Explorer 11 on Windows Server 2012 R2 KB4019215 May 9, 2017
Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4018271 May 9, 2017
Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4018271 May 9, 2017
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