CVE-2026-64393
Description
A flaw was found in the Linux kernel's ksmbd component. This vulnerability allows a local attacker to escalate privileges by manipulating Server Message Block (SMB2) SET_INFO operations. The system incorrectly uses the ksmbd worker's credentials instead of the original user's credentials when performing file system checks, potentially bypassing security restrictions and enabling unauthorized actions.
Understanding the Weakness (CWE)
Access Control
Technical Impact: Gain Privileges or Assume Identity
A user can assume the identity of another user with separate privileges in another context. This will give the user unauthorized access that may allow them to acquire the access information of other users.
Frequently Asked Questions
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