Microsoft Security Response CenterCVE-2026-69486

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

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8.8CVSS out of 10High severity

Scope

What the vendor says is affected

Microsoft Edge (Chromium-based)

Versions the vendor lists as fixed

153.0.4234.32

Next step

What the vendor recommends

Release Notes

Review the complete instructions on the vendor's site

Timeline

When this advisory changed

Sep 15, 2026 at 7:00 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Sep 16, 2026 at 3:40 AM UTC
Added to SecurityAlert
We collected the advisory from the official source.
Sep 17, 2026 at 4:10 PM UTC
Confirmed at the source
Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-69486View CVSS, KEV, EPSS, and threat context

Source

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Vendor: Microsoft Security Response Center
Advisory ID: CVE-2026-69486
Last source check: Sep 17, 2026 at 4:10 PM UTC

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What the vendor says is affected

Versions the vendor lists as fixed

What the vendor recommends

When this advisory changed

CVEs named in this advisory

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