CVE-2026-58289CWE-843

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Critical · published July 3, 2026

CVSS v3.1
9.0
EPSS
2%
Percentile
80.5
In the wild
Unconfirmed
What it is

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

The record
Technical detail
CVSS v3.1
9.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.01991 · 80.5th percentile
Weakness
CWE-843 · Access of Resource Using Incompatible Type ('Type Confusion')
Published
2026-07-03T20:35Z
EPSS history
Timeline
  • 03 JUL 20:35Z
    Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
    cvelistv5