Heap-based Buffer Overflow in Microsoft Edge (Chromium-based)
CVE-2026-96199

8.8HIGH

Key Information:

Vendor

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

What is CVE-2026-96199?

A heap-based buffer overflow vulnerability in Microsoft Edge (Chromium-based) can allow attackers to execute arbitrary code remotely. This security issue arises when the browser mishandles memory, potentially granting unauthorized access to system resources. It underscores the necessity for users to keep their browser updated to the latest version.

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:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.