CVE-2026-88090

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Published Oct 29, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges 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
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Microsoft microsoft Edge (chromium-based)
Vendors & Products Microsoft microsoft Edge (chromium-based)
Type Values Removed Values Added
Description Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges over a network.
Title Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft edge Chromium
Weaknesses CWE-843
CPEs cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft edge Chromium
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 8:47 PM
Reserved
Sep 9, 2026, 9:47 PM
Status
Analyzed
Published
Oct 29, 2026, 4:19 PM
Modified
Nov 3, 2026, 5:55 PM