Windows apps · Application version · May 1, 2025

Microsoft Edge WebView2 Runtime 136.0.3240.50

Microsoft Edge WebView2 Runtime 136.0.3240.50, released May 1, 2025, fixes 5 CVEs in Microsoft Edge WebView2 Runtime. None of them is reported as exploited. Patch Radar priority: Urgent. The latest Microsoft Edge WebView2 Runtime is 157.0.4341.42, which also fixes every one of these CVEs.

Urgent

Superseded. The latest Microsoft Edge WebView2 Runtime is 157.0.4341.42, which also fixes every CVE on this page. Install that instead.

CVEs closed
5
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0089
59th percentile

Priority of the 5 CVEs

Patch now 0 Urgent 1 High 2 Routine 2

Applies to

ProductVersion
Microsoft Edge WebView2 Runtime136.0.3240.50

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Urgent CVE-2025-4052 Chromium: CVE-2025-4052 Inappropriate implementation in DevTools9.8 0.0056 None reported
High CVE-2025-4096 Chromium: CVE-2025-4096 Heap buffer overflow in HTML8.8 0.0045 None reported
High CVE-2025-4050 Chromium: CVE-2025-4050 Out of bounds memory access in DevTools8.8 0.0044 None reported
Routine CVE-2025-29825 Microsoft Edge (Chromium-based) Spoofing Vulnerability6.5 0.0089 Exploitation Less Likely
Routine CVE-2025-4051 Chromium: CVE-2025-4051 Insufficient data validation in DevTools6.3 0.0028 None reported
Showing 1 to 5 of 5 1

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