Elevation of Privilege Vulnerability in Microsoft Edge by Microsoft
CVE-2026-42838

5.4MEDIUM

Key Information:

Vendor

Microsoft
Status
Microsoft Edge (chromium-based)
Vendor
CVE Published:
12 May 2026

What is CVE-2026-42838?

An improper handling of special elements in output within Microsoft Edge (Chromium-based) can be exploited to execute unauthorized actions over the network. This flaw could enable an attacker to gain elevated privileges, potentially compromising user security and data integrity. It's crucial for users and organizations to address this vulnerability by applying the necessary patches provided by Microsoft.

Affected Version(s)

Microsoft Edge (Chromium-based) 1.0.0.0 < 148.0.3967.55

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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