refs deduplication

About this tag
The refs deduplication tag covers discussions about the Windows Resilient File System (ReFS) Deduplication Service, including security vulnerabilities such as CVE-2025-59210, a high-severity elevation-of-privilege flaw. Topics include patching, hardening, and managing ReFS deduplication on client and server systems, particularly in virtualized datastores and hyper-converged infrastructure. Administrators can find guidance on prioritizing updates and securing affected hosts.

  1. Patch and Harden Windows ReFS Deduplication UAF CVE-2025-59210

    Microsoft has confirmed a high‑severity elevation‑of‑privilege vulnerability in the Windows Resilient File System (ReFS) Deduplication Service—tracked as CVE‑2025‑59210—and administrators running ReFS on client or server systems should treat this as a priority patching and hardening exercise for...
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    • cve 2025 59210 privilege escalation refs deduplication windows security
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    • Forum: Security Alerts