Windows apps · Application version · June 10, 2025

Microsoft Edge Dev 139.0.3365.2

Microsoft Edge Dev 139.0.3365.2, released June 10, 2025, fixes 15 CVEs in Microsoft Edge Dev. 2 of them are being exploited (CVE-2025-6554); 2 on CISA KEV. Patch Radar priority: Patch now. The latest Microsoft Edge Dev is 159.0.4378.0, which also fixes every one of these CVEs.

Patch now2 on CISA KEV

Superseded. The latest Microsoft Edge Dev is 159.0.4378.0, which also fixes every CVE on this page. Install that instead.

CVEs closed

None rated Critical

Exploited

CVE-2025-6554

Highest CVSS

8.8

Base score, 0 to 10

Highest EPSS

0.1414

96th percentile

Priority of the 15 CVEs

Patch now 2
                                Urgent 0
                                High 7
                                Routine 6

Applies to

Product	Version
Microsoft Edge Dev	139.0.3365.2

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Patch now	CVE-2025-6554	Chromium: CVE-2025-6554 Type Confusion in V8	8.1	0.1414	KEVExploited
Patch now	CVE-2025-6558	Chromium: CVE-2025-6558 Incorrect validation of untrusted input in ANGLE and GPU	8.8	0.1093	KEVExploited
High	CVE-2025-7656	Chromium: CVE-2025-7656 Integer overflow in V8	8.8	0.1107	None reported
High	CVE-2025-9132	Chromium: CVE-2025-9132 Out of bounds write in V8	8.8	0.0321	None reported
High	CVE-2025-49713	Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability	8.8	0.0081	Exploitation Unlikely
High	CVE-2025-7657	Chromium: CVE-2025-7657 Use after free in WebRTC	8.8	0.0051	None reported
High	CVE-2025-8292	Chromium: CVE-2025-8292 Use after free in Media Stream	8.8	0.0042	None reported
High	CVE-2025-8010	Chromium: CVE-2025-8010 Type Confusion in V8	8.8	0.0034	None reported
High	CVE-2025-8011	Chromium: CVE-2025-8011 Type Confusion in V8	8.8	0.0034	None reported
Routine	CVE-2025-47963	Microsoft Edge (Chromium-based) Spoofing Vulnerability	6.5	0.0062	Exploitation Less Likely
Routine	CVE-2025-47964	Microsoft Edge (Chromium-based) Spoofing Vulnerability	5.4	0.0048	None reported
Routine	CVE-2025-47182	Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability	5.6	0.0037	None reported
Routine	CVE-2025-6557	Chromium: CVE-2025-6557 Insufficient data validation in DevTools	5.4	0.0023	None reported
Routine	CVE-2025-6555	Chromium: CVE-2025-6555 Use after free in Animation	5.4	0.0021	None reported
Routine	CVE-2025-6556	Chromium: CVE-2025-6556 Insufficient policy enforcement in Loader	5.4	0.0021	None reported

Other Microsoft Edge Dev versions with security fixes

Microsoft Edge Dev 157.0.4322.0
Microsoft Edge Dev
Microsoft Edge Dev 156.0.4285.0
Microsoft Edge Dev
Microsoft Edge Dev 155.0.4273.0
Microsoft Edge Dev
Microsoft Edge Dev 154.0.4238.0
Microsoft Edge Dev
Microsoft Edge Dev 153.0.4224.0
Microsoft Edge Dev
Microsoft Edge Dev 152.0.4167.0
Microsoft Edge Dev

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