CVE-2026-50521

HIGH

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Title source: cna
STIX 2.1

Description

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

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50521

Scores

CVSS v3 8.3
EPSS 0.0082
EPSS Percentile 53.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416
Status published
Products (2)
microsoft/edge_chromium < 149.0.4022.67
Microsoft/Microsoft Edge (Chromium-based) 1.0.0.0 - 149.0.4022.68
Published Jul 01, 2026
Tracked Since Jul 02, 2026