CVE-2019-11365: Atftp Project Atftp

Critical severity, CVSS 9.8. EPSS: 4.3% chance of exploitation in the next 30 days.

An issue was discovered in atftpd in atftp 0.7.1. A remote attacker may send a crafted packet triggering a stack-based buffer overflow due to an insecurely implemented strncpy call. The vulnerability is triggered by sending an error packet of 3 bytes or fewer. There are multiple instances of this vulnerable strncpy pattern within the code base, specifically within tftpd_file.c, tftp_file.c, tftpd_mtftp.c, and tftp_mtftp.c.

Affected products

Published 2019-04-20. Last modified 2026-06-17.