Type Confusion Flaw in Microsoft Edge Browser
CVE-2026-58285

8.3HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Edge (chromium-based)
Vendor
CVE Published:
3 July 2026

What is CVE-2026-58285?

A type confusion vulnerability in Microsoft Edge (Chromium-based) allows an attacker to gain unauthorized access and potentially execute arbitrary code through crafted input, exploiting the way the browser handles resources. This flaw emphasizes the importance of keeping browser software up-to-date to mitigate potential security risks.

Affected Version(s)

Microsoft Edge (Chromium-based) 1.0.0.0 < 150.0.4078.48

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
8.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.