Threats Tagged 'cve-2026-64399'
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Threats Tagged 'cve-2026-64399'
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In the Linux kernel, the following vulnerability has been resolved: ksmbd: add permission checks for FSCTL_DUPLICATE_EXTENTS_TO_FILE The… (CVE-2026-64399)CVE-2026-64399 0 A vulnerability in the Linux kernel's ksmbd component allowed clients to overwrite destination file data without proper permission checks. Specifically, the FSCTL_DUPLICATE_EXTENTS_TO_FILE operation lacked necessary share-level and per-handle write permission validations, enabling data overwrite on read-only shares or handles with limited write attributes. This issue has been resolved by adding appropriate permission checks requiring FILE_WRITE_DATA access for this operation. Join the discussion | GCVE Database | 07/25/2026, 12:31:34 UTC Added: 07/25/2026, 23:08:58 UTC |
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