TI-2021-22495 CVE-2021-47881 · GHSA-f869-2w7m-q4p9dataSIMS Avionics ARINC 664-1 - Local Buffer OverflowPriority HIGH 65dataSIMS Avionics ARINC 664-1 version 4.5.3 contains a local buffer overflow vulnerability that allows attackers to overwrite memory by manipulating the milstd1553result.txt file.CVSS 4.0MEDIUM 6.7· Local · No auth · User interaction · EPSS 0.00203 · Published 2026-01-23 · No fix listed CWE-121