# Microsoft Edge security bypass flaw patched

Published: 2026-07-09 · Severity: low
Canonical: https://vorant.io/reports/515cb77e-fc61-5156-abfb-2d385bb9a227/microsoft-edge-security-bypass-flaw-patched

> A vulnerability in Microsoft Edge versions before 150.0.4078.50 allows an attacker to bypass security policy protections.

ANSSI-FR (CERT-FR) issued an advisory regarding a security policy bypass vulnerability affecting Microsoft Edge versions prior to 150.0.4078.50. The flaw, tracked as CVE-2026-58525, was disclosed via Microsoft's security bulletin on 8 July 2026 and could allow an attacker to circumvent intended security policy controls within the browser.

No evidence of active exploitation is mentioned in the advisory, and no proof-of-concept or in-the-wild attack details are provided. Users and administrators are advised to apply the vendor-supplied patch referenced in Microsoft's official update guide to remediate the issue.

## Mentioned in this report

- Vulnerabilities: CVE-2026-58525

Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0854

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