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CVE-2017-11858

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 8.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-11-15 · updated 2026-06-17
• Weakness: CWE-119

Description

ChakraCore and Internet Explorer in Microsoft Windows 7 SP1, Windows Server 2008 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, and Microsoft Edge and Internet Explorer in Windows 10 Gold, 1511, 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709 allows an attacker to gain the same user rights as the current user, due to how Microsoft browsers handle objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11836, CVE-2017-11837, CVE-2017-11838, CVE-2017-11839, CVE-2017-11840, CVE-2017-11841, CVE-2017-11843, CVE-2017-11846, CVE-2017-11859, CVE-2017-11861, CVE-2017-11862, CVE-2017-11866, CVE-2017-11869, CVE-2017-11870, CVE-2017-11871, and CVE-2017-11873.

Affected products

• Microsoft ChakraCore: all versions
• Microsoft Edge: all versions
• Microsoft Internet Explorer 11: all versions
• Microsoft Corporation ChakraCore, Microsoft Edge, Internet Explorer: Microsoft Windows 7 SP1, Windows Server 2008 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709.

References

• http://www.securityfocus.com/bid/101716
• http://www.securitytracker.com/id/1039780
• http://www.securitytracker.com/id/1039781
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11858
• http://www.securityfocus.com/bid/101716
• http://www.securitytracker.com/id/1039780
• http://www.securitytracker.com/id/1039781
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11858

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