Type Confusion Vulnerability in Microsoft Edge by Microsoft
CVE-2026-88090

5.4MEDIUM

Key Information:

Vendor

Microsoft
Status
Microsoft Edge (chromium-based)
Vendor
CVE Published:
29 October 2026

What is CVE-2026-88090?

A type confusion vulnerability exists in Microsoft Edge (Chromium-based), which could be exploited by an unauthorized attacker. This flaw allows attackers to elevate their privileges over a network, giving them access to restricted resources. The vulnerability arises due to improper handling of resource types, leading to potential unauthorized access. For mitigations and updates, refer to the Microsoft advisory.

Affected Version(s)

Microsoft Edge (Chromium-based) 1.0.0.0 < 154.0.4258.37

References

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

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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