Integer overflow in Microsoft Edge - CVE-2026-57974
Published: July 17, 2026
Vulnerability identifier: #VU138350
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-57974
CWE-ID: CWE-190
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 integer overflow or wraparound in Microsoft Edge (Chromium-based) when processing crafted web content. A remote attacker can trick the victim into visiting an attacker-controlled webpage to execute arbitrary code.
User interaction is required to visit the crafted webpage and perform two tap gestures that activate autofill.
Affected software
Microsoft Edge
How to mitigate CVE-2026-57974
Install security update from vendor's website.
Microsoft Edge - update to 150.0.4078.48