CVE-2026-55945

Microsoft Edge (Chromium-based) Information Disclosure Vulnerability

Published Jul 3, 2026 CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to disclose information locally.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to disclose information locally.
Title Microsoft Edge (Chromium-based) Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft edge Chromium
Weaknesses CWE-362
CPEs cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft edge Chromium
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 10:35 PM
Reserved
Jun 17, 2026, 5:37 PM
Status
Analyzed
Published
Jul 3, 2026, 9:17 PM
Modified
Oct 25, 2026, 3:10 PM