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Microsoft Edge security advisory (AV26-740)

CCCS relays Microsoft Edge advisory AV26-740 for Stable Channel versions prior to 150.0.4078.96. Update via auto-update; check edge://settings/help if you manage fleets manually.
Sources (1)
What this means for you — CISO:Push Microsoft Edge Stable 150.0.4078.96 or later across managed endpoints and confirm auto-update is healthy for any unmanaged installs. Review the release notes for the fixed issues and severity mix.
What this means for you — Lean IT orgs:Update Microsoft Edge when prompted, or open edge://settings/help and install if you are below 150.0.4078.96. Auto-update usually handles this without extra steps.
What this means for you — MSP:Roll Edge Stable 150.0.4078.96+ across client estates; verify auto-update policies and manually push any pinned, offline, or kiosk browsers that lag.
What this means for you — Researcher:Edge Stable prior to 150.0.4078.96 is the fixed floor; check Microsoft’s release notes for the CVE list and severity mix in this build.