CVE-2019-19720
HIGHCVSS 8.8/10EPSS 1.25%
Last modified
CVE-2019-19720 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Yabasic 2.86.1 has a heap-based buffer overflow in the yylex() function in flex.c via a crafted BASIC source file.. EPSS estimates a 1.25% chance of exploitation in the next 30 days.
Description
Yabasic 2.86.1 has a heap-based buffer overflow in the yylex() function in flex.c via a crafted BASIC source file.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Yabasic | Yabasic | 2.86.1 |
References
- http://www.yabasic.de/whatsnew.htmlRelease Notes, Vendor Advisory
- https://github.com/marcIhm/yabasic/issues/36Exploit, Third Party Advisory
- http://www.yabasic.de/whatsnew.htmlRelease Notes, Vendor Advisory
- https://github.com/marcIhm/yabasic/issues/36Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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.
How severe is CVE-2019-19720?
CVE-2019-19720 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.25% probability of exploitation in the next 30 days.
How do I fix CVE-2019-19720?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2019
- CVE-2019-19709MediaWiki through 1.33.1 allows attackers to bypass the Titl…6.1
- CVE-2019-1971A vulnerability in the web portal of Cisco Enterprise NFV In…9.8
- CVE-2019-19712Contao 4.0 through 4.8.5 has Insecure Permissions. Back end …5.3
- CVE-2019-19714Contao 4.8.4 and 4.8.5 has Improper Encoding or Escaping of …5.3
- CVE-2019-19719Tableau Server 10.3 through 2019.4 on Windows and Linux allo…6.1
- CVE-2019-1972A vulnerability the Cisco Enterprise NFV Infrastructure Soft…6.7
- CVE-2019-19721An off-by-one error in the DecodeBlock function in codec/sdl…7.8
- CVE-2019-19722In Dovecot before 2.3.9.2, an attacker can crash a push-noti…5.3
- CVE-2019-19724Insecure permissions (777) are set on $HOME/.singularity whe…7.5
- CVE-2019-19725sysstat through 12.2.0 has a double free in check_file_actls…9.8
- CVE-2019-19726OpenBSD through 6.6 allows local users to escalate to root b…7.8
- CVE-2019-19727SchedMD Slurm before 18.08.9 and 19.x before 19.05.5 has wea…5.5
Are you affected by CVE-2019-19720?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST