Windows apps · Application version · July 16, 2025

Microsoft Edge WebView2 Runtime 138.0.3351.95

Microsoft Edge WebView2 Runtime 138.0.3351.95, released July 16, 2025, fixes 3 CVEs in Microsoft Edge WebView2 Runtime. One of them is being exploited (CVE-2025-6558); 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Superseded.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
3
None rated Critical
Exploited
1
CVE-2025-6558
Highest CVSS
8.8
Base score, 0 to 10
Highest EPSS
0.1107
95th percentile

Priority of the 3 CVEs

Patch now 1 Urgent 0 High 2 Routine 0

Applies to

ProductVersion
Microsoft Edge WebView2 Runtime138.0.3351.95

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Patch now CVE-2025-6558 Chromium: CVE-2025-6558 Incorrect validation of untrusted input in ANGLE and GPU8.8 0.1093 KEVExploited
High CVE-2025-7656 Chromium: CVE-2025-7656 Integer overflow in V88.8 0.1107 None reported
High CVE-2025-7657 Chromium: CVE-2025-7657 Use after free in WebRTC8.8 0.0051 None reported
Showing 1 to 3 of 3 1

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