CVE-2019-25361

Ayukov NFTP client 1.71 - 'SYST' Buffer Overflow

CVSS 8.6 HIGHEPSS 0.6%CWE-121

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.6EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

18 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Ayukov NFTP client 1.71 contains a buffer overflow vulnerability in the SYST command handling that allows remote attackers to execute arbitrary code. Attackers can send a specially crafted SYST command with oversized payload to trigger a buffer overflow and execute a bind shell on port 5150.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

Ayukov · Ayukov NFTP client

References

http://ayukov.com/nftp/https://www.exploit-db.com/exploits/47576 https://www.vulncheck.com/advisories/ayukov-nftp-client-syst-buffer-overflow