Windows apps · Application version · June 25, 2026

Microsoft Edge WebView2 Runtime 149.0.4022.96

Microsoft Edge WebView2 Runtime 149.0.4022.96, released June 25, 2026, fixes 12 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Superseded.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

None rated Critical

Exploited

None reported

Highest CVSS

8.8

Base score, 0 to 10

Highest EPSS

0.0038

32nd percentile

Priority of the 12 CVEs

Patch now 0
                                Urgent 0
                                High 7
                                Routine 5

Applies to

Product	Version
Microsoft Edge WebView2 Runtime	149.0.4022.96

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-13031	Chromium: CVE-2026-13031 Use after free in Blink	8.8	0.0038	None reported
High	CVE-2026-13033	Chromium: CVE-2026-13033 Out of bounds read in Blink>InterestGroups	8.8	0.0038	None reported
High	CVE-2026-13036	Chromium: CVE-2026-13036 Use after free in Blink	8.8	0.0038	None reported
High	CVE-2026-13038	Chromium: CVE-2026-13038 Use after free in Autofill	8.8	0.0038	None reported
High	CVE-2026-13027	Chromium: CVE-2026-13027 Use after free in FileSystem	8.8	0.0032	None reported
High	CVE-2026-13025	Chromium: CVE-2026-13025 Insufficient validation of untrusted input in DevTools	8.3	0.0030	None reported
High	CVE-2026-13029	Chromium: CVE-2026-13029 Use after free in Web Authentication	7.5	0.0025	None reported
Routine	CVE-2026-13023	Chromium: CVE-2026-13023 Uninitialized Use in GPU	5.3	0.0029	None reported
Routine	CVE-2026-13024	Chromium: CVE-2026-13024 Insufficient validation of untrusted input in Navigation	4.2	0.0023	None reported
Routine	CVE-2026-13034	Chromium: CVE-2026-13034 Inappropriate implementation in Passwords	4.7	0.0020	None reported
Routine	CVE-2026-13021	Chromium: CVE-2026-13021 Inappropriate implementation in DeviceBoundSessionCredentials	4.3	0.0020	None reported
Routine	CVE-2026-13022	Chromium: CVE-2026-13022 Inappropriate implementation in Autofill	6.5	0.0020	None reported

Other Microsoft Edge WebView2 Runtime versions with security fixes

Microsoft Edge WebView2 Runtime 156.0.4314.58
Microsoft Edge WebView2 Runtime
Microsoft Edge WebView2 Runtime 156.0.4314.56
Microsoft Edge WebView2 Runtime
Microsoft Edge WebView2 Runtime 156.0.4314.50
Microsoft Edge WebView2 Runtime
Microsoft Edge WebView2 Runtime 156.0.4314.42
Microsoft Edge WebView2 Runtime
Microsoft Edge WebView2 Runtime 155.0.4283.62
Microsoft Edge WebView2 Runtime
Microsoft Edge WebView2 Runtime 155.0.4283.60
Microsoft Edge WebView2 Runtime

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