Use After Free Vulnerability in Microsoft Edge (Chromium-based) by Microsoft
CVE-2026-58288

8.3HIGH

Key Information:

Vendor

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

What is CVE-2026-58288?

A vulnerability in Microsoft Edge (Chromium-based) can be exploited through a use after free condition, allowing an unauthorized attacker to execute arbitrary code. This vulnerability presents a significant risk as it could enable adversaries to gain control over affected systems via network access. Users are advised to update to the latest version to mitigate the threat. For further information and patches, refer to the Microsoft advisory.

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

.