# CVE-2025-5419: Chromium: CVE-2025-5419 Out of bounds read and write in V8

CVE-2025-5419 is fixed in 7 products on 2 platforms, first by Microsoft Edge Dev 138.0.3309.1, released May 14, 2025. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on June 5, 2025. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/cve/CVE-2025-5419
- Priority: Patch now
- CVSS: 8.8 (high)
- EPSS: 0.0749
- CISA KEV: listed Jun 5, 2025, federal due date Jun 26, 2025
- Exploited (vendor report): yes
- Publicly disclosed: no
- Published: Jun 3, 2025
- Weakness: CWE-125: Out-of-bounds Read
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-5419

## Description

<p>This CVE was assigned by Chrome.  Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see <a href="https://chromereleases.googleblog.com/202%5BSS9.1%5D5">Google Chrome Releases</a> for more information. Google is aware that an exploit for CVE-2025-5419 exists in the wild.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Google Chrome (EXE) | 144.0.7559.133 | [Google Chrome (EXE) 144.0.7559.133](https://patchblox.com/security/data/fix/windows-app/google.chrome.exe-144.0.7559.133.md) | Feb 3, 2026 |
| Windows apps | Google Chrome Dev (EXE) | 144.0.7534.3 | [Google Chrome Dev (EXE) 144.0.7534.3](https://patchblox.com/security/data/fix/windows-app/google.chrome.dev.exe-144.0.7534.3.md) | Nov 20, 2025 |
| Windows apps | Microsoft Edge | 137.0.3296.62 | [Microsoft Edge 137.0.3296.62](https://patchblox.com/security/data/fix/windows-app/microsoft.edge-137.0.3296.62.md) | Jun 3, 2025 |
| Windows apps | Microsoft Edge Beta | 137.0.3296.62 | [Microsoft Edge Beta 137.0.3296.62](https://patchblox.com/security/data/fix/windows-app/microsoft.edge.beta-137.0.3296.62.md) | Jun 3, 2025 |
| Windows apps | Microsoft Edge Dev | 138.0.3309.1 | [Microsoft Edge Dev 138.0.3309.1](https://patchblox.com/security/data/fix/windows-app/microsoft.edge.dev-138.0.3309.1.md) | May 14, 2025 |
| Windows apps | Microsoft Edge WebView2 Runtime | 137.0.3296.62 | [Microsoft Edge WebView2 Runtime 137.0.3296.62](https://patchblox.com/security/data/fix/windows-app/microsoft.edgewebview2runtime-137.0.3296.62.md) | Jun 3, 2025 |
| Linux | chromium Debian 12.15 (bookworm) | 137.0.7151.68-1~deb12u1 | [DEBIAN-CVE-2025-5419](https://patchblox.com/security/data/fix/linux/debian-cve-2025-5419.md) | Jun 3, 2025 |
| Linux | chromium Debian 13.5 (trixie) | 137.0.7151.68-1 | [DEBIAN-CVE-2025-5419](https://patchblox.com/security/data/fix/linux/debian-cve-2025-5419.md) | Jun 3, 2025 |
| Linux | chromium Debian 14 | 137.0.7151.68-1 | [DEBIAN-CVE-2025-5419](https://patchblox.com/security/data/fix/linux/debian-cve-2025-5419.md) | Jun 3, 2025 |

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Data as of 2026-11-08T13:06:02Z 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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