ChakraCore and Microsoft Edge 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 the scripting engine handles 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-2017-11841, CVE-2017-11843, CVE-2017-11846, CVE-2017-11858, 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.
http://www.securityfocus.com/bid/101734
http://www.securitytracker.com/id/1039780
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11840
Source: MITRE
Published: 2017-11-15
Updated: 2017-12-01
Type: CWE-119
Base Score: 7.6
Vector: AV:N/AC:H/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 4.9
Severity: HIGH
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.6
Severity: HIGH