CVE-2026-43006 | Linux Kernel up to 6.18.21/6.19.11 validate_fixed_range out-of-bounds (Nessus ID 318641)

A vulnerability described as critical has been identified in Linux Kernel up to 6.18.21/6.19.11. This vulnerability affects the function validate_fixed_range. Such manipulation leads to out-of-bounds read. This vulnerability is listed as CVE-2026-43006. The attack must be carried out from within the local network. There is no available exploit. Upgrading the affected component is recommended.