Windows apps · Application version · August 15, 2025

Microsoft Edge WebView2 Runtime 139.0.3405.102

Microsoft Edge WebView2 Runtime 139.0.3405.102, released August 15, 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Superseded.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
9.6
Base score, 0 to 10
Highest EPSS
0.0034
27th percentile

Priority of the 5 CVEs

Patch now 0 Urgent 1 High 3 Routine 1

Applies to

ProductVersion
Microsoft Edge WebView2 Runtime139.0.3405.102

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Urgent CVE-2025-8901 Chromium: CVE-2025-8901 Out of bounds write in ANGLE9.6 0.0034 None reported
High CVE-2025-8879 Chromium: CVE-2025-8879 Heap buffer overflow in libaom8.8 0.0030 None reported
High CVE-2025-8880 Chromium: CVE-2025-8880 Race in V88.8 0.0028 None reported
High CVE-2025-8882 Chromium: CVE-2025-8882 Use after free in Aura8.8 0.0027 None reported
Routine CVE-2025-8881 Chromium: CVE-2025-8881 Inappropriate implementation in File Picker6.5 0.0026 None reported
Showing 1 to 5 of 5 1

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