Windows apps · Application version · March 15, 2026

Microsoft Edge WebView2 Runtime 146.0.3856.62

Microsoft Edge WebView2 Runtime 146.0.3856.62, released March 15, 2026, fixes 1 CVE in Microsoft Edge WebView2 Runtime. One of them is being exploited (CVE-2026-3909); 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.

Patch now1 on CISA KEV

Superseded.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
1
1 rated Critical
Exploited
1
CVE-2026-3909
Highest CVSS
9.6
Base score, 0 to 10
Highest EPSS
0.0233
83rd percentile

Applies to

ProductVersion
Microsoft Edge WebView2 Runtime146.0.3856.62

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Patch now CVE-2026-3909 Chromium: CVE-2026-3909 Out of bounds write in Skia9.6 0.0233 KEVExploited
Showing 1 to 1 of 1 1

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