CVE-2026-58286CWE-284

Microsoft Edge (Chromium-based) Spoofing Vulnerability

High · published July 3, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
35.1
In the wild
Unconfirmed
What it is

Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00419 · 35.1th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-07-03T20:35Z
EPSS history
Timeline
  • 03 JUL 20:35Z
    Microsoft Edge (Chromium-based) Spoofing Vulnerability
    cvelistv5