Windows apps · Application version · May 29, 2025

Microsoft Edge WebView2 Runtime 137.0.3296.52

Microsoft Edge WebView2 Runtime 137.0.3296.52, released May 29, 2025, fixes 8 CVEs in Microsoft Edge WebView2 Runtime. None of them is reported as exploited. Patch Radar priority: High. The latest Microsoft Edge WebView2 Runtime is 157.0.4341.42, which also fixes every one of these CVEs.

High

Superseded.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
8
None rated Critical
Exploited
0
None reported
Highest CVSS
8.8
Base score, 0 to 10
Highest EPSS
0.0367
89th percentile

Priority of the 8 CVEs

Patch now 0 Urgent 0 High 3 Routine 5

Applies to

ProductVersion
Microsoft Edge WebView2 Runtime137.0.3296.52

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
High CVE-2025-5063 Chromium: CVE-2025-5063 Use after free in Compositing8.8 0.0367 None reported
High CVE-2025-5280 Chromium: CVE-2025-5280 Out of bounds write in V88.8 0.0291 None reported
High CVE-2025-5283 Chromium: CVE-2025-5283 Use after free in libvpx8.8 0.0064 None reported
Routine CVE-2025-5065 Chromium: CVE-2025-5065 Inappropriate implementation in FileSystemAccess API6.5 0.0041 None reported
Routine CVE-2025-5066 Chromium: CVE-2025-5066 Inappropriate implementation in Messages6.5 0.0041 None reported
Routine CVE-2025-5067 Chromium: CVE-2025-5067 Inappropriate implementation in Tab Strip5.4 0.0036 None reported
Routine CVE-2025-5064 Chromium: CVE-2025-5064 Inappropriate implementation in Background Fetch API5.4 0.0032 None reported
Routine CVE-2025-5281 Chromium: CVE-2025-5281 Inappropriate implementation in BFCache5.4 0.0024 None reported
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