Windows apps · Application version · March 5, 2025

Microsoft Edge WebView2 Runtime 134.0.3124.51

Microsoft Edge WebView2 Runtime 134.0.3124.51, released March 5, 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Superseded.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
0.0071
53rd percentile

Priority of the 8 CVEs

Patch now 0 Urgent 0 High 5 Routine 3

Applies to

ProductVersion
Microsoft Edge WebView2 Runtime134.0.3124.51

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
High CVE-2025-1915 Chromium: CVE-2025-1915 Improper Limitation of a Pathname to a Restricted Directory in DevTools8.1 0.0042 None reported
High CVE-2025-1918 Chromium: CVE-2025-1918 Out of bounds read in PDFium8.8 0.0040 None reported
High CVE-2025-1914 Chromium: CVE-2025-1914 Out of bounds read in V88.8 0.0039 None reported
High CVE-2025-1919 Chromium: CVE-2025-1919 Out of bounds read in Media8.8 0.0039 None reported
High CVE-2025-1916 Chromium: CVE-2025-1916 Use after free in Profiles8.8 0.0028 None reported
Routine CVE-2025-26643 Microsoft Edge (Chromium-based) Spoofing Vulnerability5.4 0.0071 Exploitation Less Likely
Routine CVE-2025-1921 Chromium: CVE-2025-1921 Inappropriate Implementation in Media Stream6.5 0.0033 None reported
Routine CVE-2025-1923 Chromium: CVE-2025-1923 Inappropriate Implementation in Permission Prompts4.3 0.0021 None reported
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