CVE-2026-21104

A heap-based buffer overflow vulnerability in the KnoxVault trustlet prior to the September 2026 Release 1 allows local privileged attackers to execute arbitrary code, potentially compromising the integrity of the system. Organizations utilizing affected versions of KnoxVault should prioritize patching this vulnerability to mitigate the risk of unauthorized access and exploitation. Security teams should assess their environments for the presence of this trustlet and implement necessary updates promptly.