CVE-2026-70339

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Published Aug 11, 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 execute code 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
Description Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
Title Microsoft Edge (Chromium-based) Remote Code Execution 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, 9:59 PM
Reserved
Aug 4, 2026, 12:04 AM
Status
Analyzed
Published
Aug 11, 2026, 8:18 PM
Modified
Oct 24, 2026, 4:10 PM