Microsoft Edge in Microsoft Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an attacker to leave a malicious website open during user clipboard activities, due to the way that Microsoft Edge handles clipboard events, aka "Microsoft Edge Information Disclosure Vulnerability". This CVE ID is unique from CVE-2017-8597 and CVE-2017-8648.
http://www.securityfocus.com/bid/100747
http://www.securitytracker.com/id/1039326
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8643
Source: MITRE
Published: 2017-09-13
Updated: 2017-09-20
Type: CWE-200
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 4.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Impact Score: 1.4
Exploitability Score: 2.8
Severity: MEDIUM