Windows apps · Application version · June 4, 2026

Microsoft Edge WebView2 Runtime 149.0.4022.52

Microsoft Edge WebView2 Runtime 149.0.4022.52, released June 4, 2026, fixes 329 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Superseded.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
329
32 rated Critical
Exploited
0
None reported
Highest CVSS
9.6
Base score, 0 to 10
Highest EPSS
0.0586
93rd percentile

Priority of the 329 CVEs

Patch now 0 Urgent 32 High 161 Routine 136

Applies to

ProductVersion
Microsoft Edge WebView2 Runtime149.0.4022.52

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Urgent CVE-2026-10886 Chromium: CVE-2026-10886 Use after free in FileSystem9.6 0.0586 None reported
Urgent CVE-2026-10881 Chromium: CVE-2026-10881 Out of bounds read and write in ANGLE9.6 0.0063 None reported
Urgent CVE-2026-10974 Chromium: CVE-2026-10974 Insufficient validation of untrusted input in ANGLE9.6 0.0034 None reported
Urgent CVE-2026-11088 Chromium: CVE-2026-11088 Integer overflow in ANGLE9.6 0.0034 None reported
Urgent CVE-2026-10931 Chromium: CVE-2026-10931 Use after free in FileSystem9.6 0.0033 None reported
Urgent CVE-2026-10983 Chromium: CVE-2026-10983 Insufficient validation of untrusted input in Dawn9.6 0.0033 None reported
Urgent CVE-2026-11009 Chromium: CVE-2026-11009 Use after free in USB9.6 0.0033 None reported
Urgent CVE-2026-11021 Chromium: CVE-2026-11021 Insufficient validation of untrusted input in GPU9.6 0.0033 None reported
Urgent CVE-2026-10971 Chromium: CVE-2026-10971 Insufficient validation of untrusted input in Printing9.6 0.0032 None reported
Urgent CVE-2026-10990 Chromium: CVE-2026-10990 Use after free in Glic9.6 0.0030 None reported
Urgent CVE-2026-11002 Chromium: CVE-2026-11002 Use after free in Autofill9.6 0.0030 None reported
Urgent CVE-2026-11047 Chromium: CVE-2026-11047 Insufficient validation of untrusted input in Base9.6 0.0030 None reported
Urgent CVE-2026-10966 Chromium: CVE-2026-10966 Insufficient validation of untrusted input in Codecs9.6 0.0030 None reported
Urgent CVE-2026-11113 Chromium: CVE-2026-11113 Insufficient validation of untrusted input in ANGLE9.6 0.0028 None reported
Urgent CVE-2026-11037 Chromium: CVE-2026-11037 Out of bounds write in Codecs9.6 0.0028 None reported
Urgent CVE-2026-11095 Chromium: CVE-2026-11095 Insufficient validation of untrusted input in Codecs9.6 0.0028 None reported
Urgent CVE-2026-11061 Chromium: CVE-2026-11061 Out of bounds read in ANGLE9.6 0.0027 None reported
Urgent CVE-2026-11066 Chromium: CVE-2026-11066 Insufficient validation of untrusted input in ANGLE9.6 0.0027 None reported
Urgent CVE-2026-11120 Chromium: CVE-2026-11120 Insufficient validation of untrusted input in Enterprise Reporting9.6 0.0027 None reported
Urgent CVE-2026-11153 Chromium: CVE-2026-11153 Side-channel information leakage in Forms9.1 0.0026 None reported
Urgent CVE-2026-11052 Chromium: CVE-2026-11052 Type Confusion in GPU9.6 0.0026 None reported
Urgent CVE-2026-11250 Chromium: CVE-2026-11250 Inappropriate implementation in DevTools9.6 0.0024 None reported
Urgent CVE-2026-11056 Chromium: CVE-2026-11056 Insufficient validation of untrusted input in SiteIsolation9.6 0.0023 None reported
Urgent CVE-2026-11063 Chromium: CVE-2026-11063 Insufficient validation of untrusted input in WebNN9.6 0.0023 None reported
Urgent CVE-2026-11094 Chromium: CVE-2026-11094 Use after free in Codecs9.6 0.0023 None reported
Showing 1 to 25 of 329 1Next

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