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Microsoft Security Response CenterCVE-2026-88090

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

MediumVendor CVSS 5.4 / 10 1 CVE Published Oct 26, 2026 at 7:00 AM UTC
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Summary

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges over a network.

Products covered

  • Microsoft Edge (Chromium-based)

Remediation

Release Notes

Vendor-listed fixes

  • 154.0.4258.37

  • 154.0.4258.38

CVEs in this advisory 1

CVE-2026-88090

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

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