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CRITICAL · 9.0

CVE-2026-58289

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Vulnerability Description

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

CVSS Score

9.0

CRITICAL

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
MicrosoftEdge Chromium< 150.0.4078.48

Related Weaknesses (CWE)

CWE-843

References

FAQ

What is CVE-2026-58289?

CVE-2026-58289 is a vulnerability with a CVSS score of 9.0 (CRITICAL). Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

How severe is CVE-2026-58289?

CVE-2026-58289 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-58289?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Edge Chromium.