Remote Code Execution Vulnerability in Microsoft Edge by Microsoft
CVE-2026-66326

6.5MEDIUM

Key Information:

Vendor

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

What is CVE-2026-66326?

A vulnerability exists in Microsoft Edge (Chromium-based) due to missing authorization checks, enabling unauthorized attackers to execute arbitrary code over the network. Exploitation of this vulnerability could lead to significant security risks and exposure of sensitive information. Users are encouraged to update their browsers to the latest versions to mitigate these risks and ensure comprehensive protection against unauthorized access.

Affected Version(s)

Microsoft Edge (Chromium-based) 1.0.0.0 < 151.0.4129.59

References

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

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.