# Microsoft Edge WebView2 Runtime 145.0.3800.58

Microsoft Edge WebView2 Runtime 145.0.3800.58, released February 14, 2026, fixes 11 CVEs in Microsoft Edge WebView2 Runtime. One of them is being exploited (CVE-2026-2441); 1 on CISA KEV. Patch Radar priority: Patch now. 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-145.0.3800.58
- Platform: Windows apps
- Released: Feb 14, 2026
- Priority: Patch now (Closes CVE-2026-2441, exploited (CISA KEV))
- CVEs: 11, exploited: 1, on CISA KEV: 1
- Superseded by: [Microsoft Edge WebView2 Runtime 157.0.4341.42](https://patchblox.com/security/data/product/windows-app/microsoft-edge-webview2-runtime.md), the latest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) |  | 145.0.3800.58 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-2441](https://patchblox.com/security/data/cve/CVE-2026-2441.md) | Patch now | Chromium: CVE-2026-2441 Use after free in CSS | 8.8 | 0.5446 | CISA KEV |
| [CVE-2026-2314](https://patchblox.com/security/data/cve/CVE-2026-2314.md) | High | Chromium: CVE-2026-2314 Heap buffer overflow in Codecs | 8.8 | 0.0462 |  |
| [CVE-2026-2313](https://patchblox.com/security/data/cve/CVE-2026-2313.md) | High | Chromium: CVE-2026-2313 Use after free in CSS | 8.8 | 0.0451 |  |
| [CVE-2026-2319](https://patchblox.com/security/data/cve/CVE-2026-2319.md) | High | Chromium: CVE-2026-2319 Race in DevTools | 7.5 | 0.0022 |  |
| [CVE-2026-0102](https://patchblox.com/security/data/cve/CVE-2026-0102.md) | Routine | Microsoft Edge (Chromium-based) Defense in Depth Vulnerability | 3.1 | 0.0054 |  |
| [CVE-2026-2316](https://patchblox.com/security/data/cve/CVE-2026-2316.md) | Routine | Chromium: CVE-2026-2316 Insufficient policy enforcement in Frames | 6.5 | 0.0027 |  |
| [CVE-2026-2318](https://patchblox.com/security/data/cve/CVE-2026-2318.md) | Routine | CVE-2026-2318 | 6.5 | 0.0027 |  |
| [CVE-2026-2320](https://patchblox.com/security/data/cve/CVE-2026-2320.md) | Routine | Chromium: CVE-2026-2320 Inappropriate implementation in File input | 6.5 | 0.0025 |  |
| [CVE-2026-2322](https://patchblox.com/security/data/cve/CVE-2026-2322.md) | Routine | Chromium: CVE-2026-2322 Heap buffer overflow in Codecs | 5.4 | 0.0025 |  |
| [CVE-2026-2323](https://patchblox.com/security/data/cve/CVE-2026-2323.md) | Routine | Chromium: CVE-2026-2323 Inappropriate implementation in Downloads | 4.3 | 0.0025 |  |
| [CVE-2026-2317](https://patchblox.com/security/data/cve/CVE-2026-2317.md) | Routine | Chromium: CVE-2026-2317 Inappropriate implementation in Animation | 6.5 | 0.0024 |  |

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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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