CVE-2019-19720
CVSS v3
8.8
HIGH
EPSS Score
1.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Yabasic 2.86.1 has a heap-based buffer overflow in the yylex() function in flex.c via a crafted BASIC source file.
Technical details
- Published
- 2019-12-11
Frequently asked questions
What is CVE-2019-19720?
Yabasic 2.86.1 has a heap-based buffer overflow in the yylex() function in flex.c via a crafted BASIC source file.
Is CVE-2019-19720 actively exploited?
Active exploitation of CVE-2019-19720 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-19720?
CVE-2019-19720 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2019-19720 affecting your environment?
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