CVE-2019-25361

CRITICAL

Ayukov NFTP client 1.71 - Stack-based Buffer Overflow via SYST Command

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-25361. PoCs published by SYANiDE.

AI-analyzed exploit summary This is a functional exploit for a buffer overflow vulnerability in Ayukov NFTP client 1.71. It leverages a crafted SYST response to overwrite EIP and execute a bind shell payload on Windows XP systems.

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.

Exploits (1)

exploitdb WORKING POC
by SYANiDE · pythonremotewindows
https://www.exploit-db.com/exploits/47576

This is a functional exploit for a buffer overflow vulnerability in Ayukov NFTP client 1.71. It leverages a crafted SYST response to overwrite EIP and execute a bind shell payload on Windows XP systems.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Ayukov NFTP client 1.71
No auth needed
Prerequisites: Network access to the target · Target must connect to a malicious FTP server
devstral-2 · analyzed Feb 19, 2026 Full analysis →

References (3)

Core 3
Core References
Various Sources product
http://ayukov.com/nftp/
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/47576

Scores

CVSS v3 9.8
EPSS 0.0064
EPSS Percentile 45.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-121
Status published
Products (1)
Ayukov/Ayukov NFTP client 1.71
Published Feb 18, 2026
Tracked Since Feb 19, 2026