Elevation of Privilege Vulnerability in Microsoft Edge (Chromium-based)
CVE-2026-88077

8.8HIGH

Key Information:

Vendor

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

What is CVE-2026-88077?

An integer overflow vulnerability in Microsoft Edge (Chromium-based) can be exploited by unauthorized attackers to escalate their privileges over a network. This could allow attackers to perform actions and access information ordinarily restricted to higher privilege levels, posing a significant risk to user security and integrity.

Affected Version(s)

Microsoft Edge (Chromium-based) 1.0.0.0 < 154.0.4258.62

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

.