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Microsoft Security Response CenterCVE-2026-70339

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

HighVendor CVSS 5.4 / 10 1 CVE Published Aug 11, 2026 at 7:00 AM UTC

Summary

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

Products covered

  • Microsoft Edge (Chromium-based)

Remediation

Release Notes

Vendor-listed fixes

  • 151.0.4129.78

CVEs in this advisory 1

Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • The vendor changed its remediation guidance.

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.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.