Main Vulnerability Database Vulnerabilities #VU131188

Improper Neutralization of Special Elements in Output Used by a Downstream Component in Microsoft Edge - CVE-2026-42838

Published: May 12, 2026

Vulnerability identifier: #VU131188

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2026-42838

CWE-ID: CWE-74

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Microsoft

Affected software:
Microsoft Edge

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary scripting code on the system.

The vulnerability exists due to improper input validation. A remote attacker can execute arbitrary scripting code on the system.

Install updates from vendor's website.