TI-2026-75347 CVE-2026-55543Arbitrary code execution in TuxGuitar via crafted .tg filePriority HIGH 72TuxGuitar is an open-source guitar tablature editor.CVSS 4.0HIGH 8.5· Local · No auth · User interaction · EPSS 0.00213 · Published 2026-10-16 · Fixed in 2.1.0 CWE-470