CVE-2026-46139 | Linux Kernel up to 6.12.87/6.18.29/7.0.6/7.1-rc2 smb build_sec_desc uninitialized pointer

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A vulnerability described as critical has been identified in Linux Kernel up to 6.12.87/6.18.29/7.0.6/7.1-rc2. This affects the function build_sec_desc of the component smb. Executing a manipulation can lead to uninitialized pointer.

This vulnerability is handled as CVE-2026-46139. The attack can only be done within the local network. There is not any exploit available.

Upgrading the affected component is recommended.VulDB Recent EntriesRead More