A vulnerability was found in Linux Kernel up to 6.18.21/6.19.11. It has been classified as critical. This issue affects the function enter_alt_screen of the component vt. The manipulation leads to out-of-bounds read.

This vulnerability is uniquely identified as CVE-2026-31742. The attack can only be initiated within the local network. No exploit exists.

Upgrading the affected component is recommended.