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cve-2026-31704

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CVE-2026-31704 is a Linux kernel ksmbd vulnerability disclosed in early May 2026 and fixed in stable kernel patches. The flaw involves unchecked 16-bit DACL size accumulation in SMB ACL handling, which can wrap past 65,535 bytes and corrupt the access-control buffer on affected systems. While not a classic Windows bug, it impacts Windows file-sharing environments because SMB is now a cross-platform protocol. WindowsForum readers running Linux SMB services through ksmbd should treat kernel updates as critical file-server security updates. The vulnerability highlights that SMB security extends beyond Microsoft systems, requiring vigilance across mixed environments.
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    CVE-2026-31704 ksmbd SMB ACL Overflow: Patch Linux Kernel Fixes Fast

    CVE-2026-31704 is a Linux kernel ksmbd vulnerability disclosed in early May 2026 and fixed in stable kernel patches, where unchecked 16-bit DACL size accumulation in SMB ACL handling can wrap past 65,535 bytes and corrupt the access-control buffer on affected systems. It is not a classic Windows...
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    • cve-2026-31704 ksmbd security linux kernel patching smb acl overflow
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    • Forum: Security Alerts
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