cve 2026-41095

CVE-2026-41095 is a May 2026 Patch Tuesday elevation-of-privilege vulnerability in Windows Server Data Deduplication, a storage feature that reduces duplicate data on supported server volumes. This bug is not an Internet-facing risk but a local privilege escalation that could be used in compromise chains after an attacker gains initial access. Administrators should prioritize patching because this type of vulnerability is often exploited in multi-step attacks. The tag covers discussion of the vulnerability's disclosure, impact on file-server and virtualization-adjacent environments, and the importance of applying the security update.