CVE-2017-8642
Microsoft Edge in Microsoft Windows 10 1703 allows an attacker to elevate privileges due to the way that Microsoft Edge validates JavaScript under specific conditions, aka "Microsoft Edge Elevation of Privilege Vulnerability".
Does this matter?
Lower severity and a low EPSS score (2.96%). Track it; it rarely justifies an emergency change on its own.
Description
Microsoft Edge in Microsoft Windows 10 1703 allows an attacker to elevate privileges due to the way that Microsoft Edge validates JavaScript under specific conditions, aka "Microsoft Edge Elevation of Privilege Vulnerability". This CVE ID is unique from CVE-2017-8503.
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 2.96% probability · 87th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- microsoft/edge
- Source
- secure@microsoft.com
EPSS moved from 4.0% on 21 September 2026 to 3.0% on 27 October 2026.
References
- http://www.securityfocus.com/bid/100046Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039101Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8642Patch, Vendor Advisory
- http://www.securityfocus.com/bid/100046Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039101Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8642Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.