CVE-2026-57977CWE-79

Microsoft Edge (Chromium-based) Spoofing Vulnerability

High · published July 3, 2026

CVSS v3.1
7.1
EPSS
1%
Percentile
46.9
In the wild
Unconfirmed
What it is

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00577 · 46.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-03T20:35Z
EPSS history
Timeline
  • 03 JUL 20:35Z
    Microsoft Edge (Chromium-based) Spoofing Vulnerability
    cvelistv5