# Microsoft Edge Dev 139.0.3365.2

Microsoft Edge Dev 139.0.3365.2, released June 10, 2025, fixes 15 CVEs in Microsoft Edge Dev. 2 of them are being exploited (CVE-2025-6554); 2 on CISA KEV. Patch Radar priority: Patch now. The latest Microsoft Edge Dev is 159.0.4378.0, which also fixes every one of these CVEs.

- Web page: https://patchblox.com/security/fix/windows-app/microsoft.edge.dev-139.0.3365.2
- Platform: Windows apps
- Released: Jun 10, 2025
- Priority: Patch now (Closes CVE-2025-6554, exploited (CISA KEV))
- CVEs: 15, exploited: 2, on CISA KEV: 2
- Superseded by: [Microsoft Edge Dev 159.0.4378.0](https://patchblox.com/security/data/product/windows-app/microsoft-edge-dev.md), the latest version, which also fixes every CVE listed here

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft Edge Dev](https://patchblox.com/security/data/product/windows-app/microsoft-edge-dev.md) |  | 139.0.3365.2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-6554](https://patchblox.com/security/data/cve/CVE-2025-6554.md) | Patch now | Chromium: CVE-2025-6554 Type Confusion in V8 | 8.1 | 0.1414 | CISA KEV |
| [CVE-2025-6558](https://patchblox.com/security/data/cve/CVE-2025-6558.md) | Patch now | Chromium: CVE-2025-6558 Incorrect validation of untrusted input in ANGLE and GPU | 8.8 | 0.1093 | CISA KEV |
| [CVE-2025-7656](https://patchblox.com/security/data/cve/CVE-2025-7656.md) | High | Chromium: CVE-2025-7656 Integer overflow in V8 | 8.8 | 0.1107 |  |
| [CVE-2025-9132](https://patchblox.com/security/data/cve/CVE-2025-9132.md) | High | Chromium: CVE-2025-9132 Out of bounds write in V8 | 8.8 | 0.0321 |  |
| [CVE-2025-49713](https://patchblox.com/security/data/cve/CVE-2025-49713.md) | High | Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability | 8.8 | 0.0081 |  |
| [CVE-2025-7657](https://patchblox.com/security/data/cve/CVE-2025-7657.md) | High | Chromium: CVE-2025-7657 Use after free in WebRTC | 8.8 | 0.0051 |  |
| [CVE-2025-8292](https://patchblox.com/security/data/cve/CVE-2025-8292.md) | High | Chromium: CVE-2025-8292 Use after free in Media Stream | 8.8 | 0.0042 |  |
| [CVE-2025-8010](https://patchblox.com/security/data/cve/CVE-2025-8010.md) | High | Chromium: CVE-2025-8010 Type Confusion in V8 | 8.8 | 0.0034 |  |
| [CVE-2025-8011](https://patchblox.com/security/data/cve/CVE-2025-8011.md) | High | Chromium: CVE-2025-8011 Type Confusion in V8 | 8.8 | 0.0034 |  |
| [CVE-2025-47963](https://patchblox.com/security/data/cve/CVE-2025-47963.md) | Routine | Microsoft Edge (Chromium-based) Spoofing Vulnerability | 6.5 | 0.0062 |  |
| [CVE-2025-47964](https://patchblox.com/security/data/cve/CVE-2025-47964.md) | Routine | Microsoft Edge (Chromium-based) Spoofing Vulnerability | 5.4 | 0.0048 |  |
| [CVE-2025-47182](https://patchblox.com/security/data/cve/CVE-2025-47182.md) | Routine | Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability | 5.6 | 0.0037 |  |
| [CVE-2025-6557](https://patchblox.com/security/data/cve/CVE-2025-6557.md) | Routine | Chromium: CVE-2025-6557 Insufficient data validation in DevTools | 5.4 | 0.0023 |  |
| [CVE-2025-6555](https://patchblox.com/security/data/cve/CVE-2025-6555.md) | Routine | Chromium: CVE-2025-6555 Use after free in Animation | 5.4 | 0.0021 |  |
| [CVE-2025-6556](https://patchblox.com/security/data/cve/CVE-2025-6556.md) | Routine | Chromium: CVE-2025-6556 Insufficient policy enforcement in Loader | 5.4 | 0.0021 |  |

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Data as of 2026-11-10T13:56:55Z 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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