CVE-2026-43020

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the Bluetooth MGMT component where the system fails to properly validate the enc size provided by the user during the loading of Long Term Keys (LTK). This enc size is subsequently used to determine the size of fixed-size stack operations when responding to LE LTK requests. If an enc size exceeding the 16-byte key buffer is provided, it can lead to a stack buffer overflow in the reply process.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.