CVE-2026-50521CWE-416

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

High · published July 1, 2026

CVSS v3.1
8.3
EPSS
1%
Percentile
56.9
In the wild
Unconfirmed
What it is

Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.

The record
Technical detail
CVSS v3.1
8.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00822 · 56.9th percentile
Weakness
CWE-416 · Use After Free
Published
2026-07-01T20:14Z
EPSS history
Timeline
  • 01 JUL 20:14Z
    Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
    cvelistv5