CVE-2019-19720: Yabasic

High severity, CVSS 8.8. EPSS: 1.2% chance of exploitation in the next 30 days.

Yabasic 2.86.1 has a heap-based buffer overflow in the yylex() function in flex.c via a crafted BASIC source file.

Affected products

• Yabasic Yabasic: version 2.86.1 only

Published 2019-12-11. Last modified 2026-06-17.