Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2026-70339 is fixed in 4 products on 2 platforms, first by Microsoft Edge Dev 152.0.4167.0, released July 20, 2026. It is not reported as exploited. Patch Radar priority: Routine.
<p>Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Microsoft Edge | 151.0.4129.78 | Microsoft Edge 151.0.4129.78 | Aug 10, 2026 |
| Microsoft Edge Beta | 152.0.4191.51 | Microsoft Edge Beta 152.0.4191.51 | Aug 26, 2026 |
| Microsoft Edge Dev | 152.0.4167.0 | Microsoft Edge Dev 152.0.4167.0 | Jul 20, 2026 |
| Microsoft Edge WebView2 Runtime | 151.0.4129.78 | Microsoft Edge WebView2 Runtime 151.0.4129.78 | Aug 10, 2026 |
| macOS | |||
| Microsoft Edge | 151.0.4129.78 | Microsoft Edge 151.0.4129.78 | Aug 9, 2026 |
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