Stay ahead of the latest threats with the PortalFuse Weekly Security Report for the week ending June 24, 2025. This essential briefing is for IT professionals and system administrators managing Windows systems. We cut through the noise by consolidating information directly from MSI posts and Microsoft support documents to save you time.

This week, we focus on two new critical vulnerabilities impacting Chromium-based Microsoft products, CVE-2025-6192 and CVE-2025-6191, which were released on June 19th. We will break down these threats, including a "use after free" memory safety vulnerability and an integer overflow flaw in the V8 JavaScript engine. Learn the immediate actions required, from applying security updates to temporary mitigations like network segmentation. We also touch on an informational update to CVE-2025-33053 and clarify what it means for your patching priorities.