Type Confusion Vulnerability in Microsoft Edge by Microsoft
CVE-2026-58290

7.5HIGH

Key Information:

Vendor

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

What is CVE-2026-58290?

A vulnerability in Microsoft Edge allows an attacker to exploit a type confusion issue, potentially leading to unauthorized code execution. This flaw can be triggered by sending specially crafted data over the network, compromising user security. Users are advised to apply the necessary patches to mitigate this risk.

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:
7.5
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.