# CVE-2025-53791: Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability

CVE-2025-53791 is fixed in 4 products on 1 platform, first by Microsoft Edge Dev 141.0.3500.1, released August 19, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-53791
- Priority: Routine
- CVSS: 4.7 (Moderate)
- EPSS: 0.0041
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Sep 5, 2025
- Weakness: Improper Access Control
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53791

## Description

<p>Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Microsoft Edge | 140.0.3485.54 | [Microsoft Edge 140.0.3485.54](https://patchblox.com/security/data/fix/windows-app/microsoft.edge-140.0.3485.54.md) | Sep 5, 2025 |
| Windows apps | Microsoft Edge Beta | 140.0.3485.54 | [Microsoft Edge Beta 140.0.3485.54](https://patchblox.com/security/data/fix/windows-app/microsoft.edge.beta-140.0.3485.54.md) | Sep 5, 2025 |
| Windows apps | Microsoft Edge Dev | 141.0.3500.1 | [Microsoft Edge Dev 141.0.3500.1](https://patchblox.com/security/data/fix/windows-app/microsoft.edge.dev-141.0.3500.1.md) | Aug 19, 2025 |
| Windows apps | Microsoft Edge WebView2 Runtime | 140.0.3485.54 | [Microsoft Edge WebView2 Runtime 140.0.3485.54](https://patchblox.com/security/data/fix/windows-app/microsoft.edgewebview2runtime-140.0.3485.54.md) | Sep 5, 2025 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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