XSS in Microsoft Edge

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". This CVE ID is unique from CVE-2017-8503.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.030 (85.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-8642?
CVE-2017-8642 is a medium-severity vulnerability in Microsoft Edge, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-08-08.
How severe is CVE-2017-8642?
Medium severity. CVSS v3 base score is 6.1 out of 10.