cve-2025-53791

About this tag
CVE-2025-53791 is a Microsoft Edge (Chromium-based) security feature bypass vulnerability. Tracked as an improper access-control condition, it could allow an unauthorized actor to bypass a browser security feature over a network. The vulnerability was addressed in Edge 140 (stable build 140.0.3485.54), released in September 2025. Patching by updating Edge to the fixed build is the primary mitigation. Windows administrators and power users should prioritize this update to maintain browser security posture. The tag covers discussions about the vulnerability's impact, patching guidance, and its relation to other Edge 140 features like scareware blocker and HTTPS-first mode.
  1. Edge 140 Release: Scareware Blocker, HTTPS-First, Tab Groups Auto-Save, GPT-5 Copilot

    Microsoft Edge’s September update lands as a significant security-and-productivity release: Edge 140 (stable build 140.0.3485.54) ships a local AI-powered Scareware blocker, an HTTPS‑first upgrade path, automatic persistence for Tab Groups, expanded Copilot/GPT-5 integrations and media-creation...
  2. CVE-2025-53791: What Windows admins should know about Edge feature bypass

    Title: CVE-2025-53791 — What Windows admins need to know about the Microsoft Edge (Chromium) “security feature bypass” (as of September 5, 2025) Summary (short) CVE-2025-53791 is tracked by Microsoft as a “Security Feature Bypass” in Microsoft Edge (Chromium‑based). Microsoft’s advisory...