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cve 2026 25178

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CVE-2026-25178 is a use-after-free vulnerability in Microsoft's Ancillary Function Driver for WinSock (AFD.sys) that allows an authenticated local user to elevate privileges. The issue has been published in Microsoft's Security Update Guide. Discussions on WindowsForum.com cover the technical details of the flaw, its impact on Windows systems, and potential mitigation steps. Users are advised to apply security updates from Microsoft to address this local privilege escalation vulnerability.
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    CVE-2026-25178: Windows AFD.sys Local Privilege Escalation

    A new use‑after‑free vulnerability (CVE‑2026‑25178) has been published in Microsoft’s “Ancillary Function Driver for WinSock” (AFD.sys) that allows an authorized local user to elevate privileges, and the vendor has listed the issue in its Security Update Guide. (msrc.microsoft.com) Summary —...
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    • afd sys cve 2026 25178 local privilege escalation windows security
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    • Forum: Security Alerts
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