Windows apps · Application version · September 25, 2025

Microsoft Edge WebView2 Runtime 140.0.3485.94

Microsoft Edge WebView2 Runtime 140.0.3485.94, released September 25, 2025, fixes 3 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Superseded.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
3
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.1
Base score, 0 to 10
Highest EPSS
0.0868
95th percentile

Priority of the 3 CVEs

Patch now 0 Urgent 1 High 2 Routine 0

Applies to

ProductVersion
Microsoft Edge WebView2 Runtime140.0.3485.94

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Urgent CVE-2025-10890 Chromium: CVE-2025-10890 Side-channel information leakage in V89.1 0.0037 None reported
High CVE-2025-10891 Chromium: CVE-2025-10891 Integer overflow in V88.8 0.0868 None reported
High CVE-2025-10892 Chromium: CVE-2025-10892 Integer overflow in V88.8 0.0029 None reported
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