Microsoft Patch Tuesday April 2025 critical RCE fixes
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Microsoft patches critical remote code execution vulnerabilities across Windows, Office, and Azure; no active exploitation reported.
CIS/MS-ISAC advisory 2025-036 documents Microsoft's April 8, 2025 security updates addressing multiple critical vulnerabilities in a broad range of products. The most severe flaws enable remote code execution with the privileges of the logged-on user, potentially allowing attackers to install programs, modify or delete data, or create privileged accounts depending on user rights context. The advisory lists over 50 affected components spanning Windows kernel and system services, Office applications, Azure products, Visual Studio, Edge, and remote access services. No evidence of in-the-wild exploitation exists at time of publication.
Defenders should prioritize patching across the full affected product stack immediately after appropriate testing. The advisory emphasizes applying mitigations specific to each vulnerability via Microsoft's official security updates. Exploitability is contingent on user privileges; systems configured with least-privilege access will suffer reduced impact from successful compromises. The breadth of affected components—from kernel-mode code to user-facing applications—suggests this is a standard Patch Tuesday release rather than a targeted or zero-day disclosure.
Source reporting: https://www.cisecurity.org/advisory/critical-patches-issued-for-microsoft-products-april-8-2025_2025-036
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