CVE-2026-66314

Microsoft · Published July 31, 2026

6.5

CVSS v3.1

MEDIUM

Patch availableGet patch

Description

Microsoft Edge (Chromium-based) Information Disclosure Vulnerability. Time-of-check time-of-use (toctou) race condition in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

Affected Products

Microsoft Edge (Chromium-based)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C