# Microsoft Edge WebView2 Runtime 134.0.3124.51

Microsoft Edge WebView2 Runtime 134.0.3124.51, released March 5, 2025, fixes 8 CVEs in Microsoft Edge WebView2 Runtime. None of them is reported as exploited. Patch Radar priority: High. The latest Microsoft Edge WebView2 Runtime is 157.0.4341.42, which also fixes every one of these CVEs.

- Web page: https://patchblox.com/security/fix/windows-app/microsoft.edgewebview2runtime-134.0.3124.51
- Platform: Windows apps
- Released: Mar 5, 2025
- Priority: High (Closes CVE-2025-1915, high severity)
- CVEs: 8, exploited: 0, on CISA KEV: 0
- Superseded by: [Microsoft Edge WebView2 Runtime 157.0.4341.42](https://patchblox.com/security/data/product/windows-app/microsoft-edge-webview2-runtime.md), the latest version, which also fixes every CVE listed here

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft Edge WebView2 Runtime](https://patchblox.com/security/data/product/windows-app/microsoft-edge-webview2-runtime.md) |  | 134.0.3124.51 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-1915](https://patchblox.com/security/data/cve/CVE-2025-1915.md) | High | Chromium: CVE-2025-1915 Improper Limitation of a Pathname to a Restricted Directory in DevTools | 8.1 | 0.0042 |  |
| [CVE-2025-1918](https://patchblox.com/security/data/cve/CVE-2025-1918.md) | High | Chromium: CVE-2025-1918 Out of bounds read in PDFium | 8.8 | 0.0040 |  |
| [CVE-2025-1914](https://patchblox.com/security/data/cve/CVE-2025-1914.md) | High | Chromium: CVE-2025-1914 Out of bounds read in V8 | 8.8 | 0.0039 |  |
| [CVE-2025-1919](https://patchblox.com/security/data/cve/CVE-2025-1919.md) | High | Chromium: CVE-2025-1919 Out of bounds read in Media | 8.8 | 0.0039 |  |
| [CVE-2025-1916](https://patchblox.com/security/data/cve/CVE-2025-1916.md) | High | Chromium: CVE-2025-1916 Use after free in Profiles | 8.8 | 0.0028 |  |
| [CVE-2025-26643](https://patchblox.com/security/data/cve/CVE-2025-26643.md) | Routine | Microsoft Edge (Chromium-based) Spoofing Vulnerability | 5.4 | 0.0071 |  |
| [CVE-2025-1921](https://patchblox.com/security/data/cve/CVE-2025-1921.md) | Routine | Chromium: CVE-2025-1921 Inappropriate Implementation in Media Stream | 6.5 | 0.0033 |  |
| [CVE-2025-1923](https://patchblox.com/security/data/cve/CVE-2025-1923.md) | Routine | Chromium: CVE-2025-1923 Inappropriate Implementation in Permission Prompts | 4.3 | 0.0021 |  |

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Data as of 2026-11-11T13:47:35Z 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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