Heap-Based Buffer Overflow in Microsoft Edge by Microsoft
CVE-2026-72970

8.3HIGH

Key Information:

Vendor

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

What is CVE-2026-72970?

A heap-based buffer overflow vulnerability exists in Microsoft Edge (Chromium-based), which could allow an unauthorized attacker to execute arbitrary code via crafted content served over a network. Exploitation of this flaw may lead to unintended operations that compromise the integrity and availability of the affected system.

Affected Version(s)

Microsoft Edge (Chromium-based) 1.0.0.0 < 151.0.4129.86

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:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.