CVE-2026-55945

Medium

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to disclose information locally.

SeverityMedium

CVSS4.2

Exploit probability—

Product

Microsoft Edge Chromium

PublishedJul 3, 2026

First seenJul 3, 2026

Weakness typeCWE-362Race condition

How to fix

Update

microsoft edge_chromium150.0.4078.48 or later

Patches

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55945

Affected products

Product	Affected versions	Fixed in
microsoft edge_chromium	v < 150.0.4078.48	150.0.4078.48

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