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Vulnerability record · CVE-2019-25361 · published 18 February 2026

CVE-2019-25361: Stack-based buffer overflow vulnerability

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.

8.6 CVSS 4.0 High EPSS 0.66% · top 50.3% CWE-121 · Stack-based buffer overflow Deferred
8.6CVSS 4.0 base score
0.66%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

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

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Source: NIST National Vulnerability Database (record CVE-2019-25361), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.