CVE-2026-64399 | Linux Kernel up to 7.1.3 ksmbd smb2_ioctl daccess permission

July 25, 2026 Yanac

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 6.1.177/6.6.144/6.12.95/6.18.38/7.1.3. This vulnerability affects the function smb2_ioctl of the component ksmbd. Such manipulation of the argument daccess leads to permission issues.

This vulnerability is referenced as CVE-2026-64399. It is possible to launch the attack remotely. No exploit is available.

You should upgrade the affected component.VulDB Recent EntriesRead More