External Control of File Name or Path in Microsoft Edge - CVE-2026-58293
Published: July 17, 2026
Vulnerability identifier: #VU138364
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-58293
CWE-ID: CWE-73
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to external control of file name or path in Microsoft Edge (Chromium-based) when processing attacker-controlled web content. A remote attacker can host a specially crafted website and convince a user to view it to execute arbitrary code.
Successful exploitation requires crafting deceptive or invisible form elements and the user performing two sequential taps.
Affected software
Microsoft Edge
How to mitigate CVE-2026-58293
Install security update from vendor's website.
Microsoft Edge - update to 150.0.4078.48