Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

What is the version information for this release? Microsoft Edge Version Date Released Based on Chromium Version 140.0.3485.81 09/19/2025 140.0.7339.186

According to the CVSS metric, the attack vector is network (AV:N) and the user interaction is required (UI:R). What is the target context of the remote code execution? This attack requires an authenticated client to click a link so that an unauthenticated attacker can initiate remote code execution.

According to the CVSS metrics, successful exploitation of this vulnerability could lead to major loss of confidentiality (C:H), and integrity (I:H), and some loss of availability (A:L). What does that mean for this vulnerability? An attacker who successfully exploited this vulnerability could view sensitive information (Confidentiality), make changes to disclosed information (Integrity), and they might be able to force a crash within the browser tab (Availability).