CVE-2026-66324

Microsoft Edge (Chromium-based) Spoofing Vulnerability

Published Aug 28, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
External control of file name or path in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

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
First Time appeared Microsoft edge
CPEs cpe:2.3:a:microsoft:edge:*:*:*:*:*:android:*:*
cpe:2.3:a:microsoft:edge:*:*:*:*:*:iphone_os:*:*
cpe:2.3:a:microsoft:edge:*:*:*:*:*:linux:*:*
cpe:2.3:a:microsoft:edge:*:*:*:*:*:mac:*:*
cpe:2.3:a:microsoft:edge:*:*:*:*:*:windows:*:*
Vendors & Products Microsoft edge
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 External control of file name or path in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
Title Microsoft Edge (Chromium-based) Spoofing Vulnerability
First Time appeared Microsoft
Microsoft edge Chromium
Weaknesses CWE-73
CPEs cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft edge Chromium
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 10:01 PM
Reserved
Jul 24, 2026, 6:06 PM
Status
Analyzed
Published
Aug 28, 2026, 8:19 PM
Modified
Oct 28, 2026, 9:17 PM