Remote Code Execution Vulnerability in Microsoft Edge (Chromium-based)
CVE-2026-58287

8.3HIGH

Key Information:

Vendor

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

What is CVE-2026-58287?

A vulnerability in Microsoft Edge (Chromium-based) allows unauthorized attackers to leverage a use after free condition, which may enable code execution over a network. This issue can potentially expose users to malicious activities if not mitigated. Users are urged to apply the latest security updates to protect their systems.

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

.