CVE-2019-25361
Received Received - Intake
Buffer Overflow in Ayukov NFTP Client Enables Remote Code Execution

Publication date: 2026-02-18

Last updated on: 2026-02-18

Assigner: VulnCheck

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.
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Meta Information
Published
2026-02-18
Last Modified
2026-02-18
Generated
2026-06-16
AI Q&A
2026-02-19
EPSS Evaluated
2026-06-15
NVD
CVE-2019-25361
EUVD
EUVD-2019-19703
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
ayukov nftp_client 1.71
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
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Impact Analysis

This vulnerability can have severe impacts as it allows remote attackers to execute arbitrary code without any privileges or user interaction.

  • Attackers can gain unauthorized remote access to the affected system by executing a bind shell on port 5150.
  • This can lead to full system compromise, data theft, or further exploitation within the network.
  • Because the vulnerability is remotely exploitable with no privileges required, it poses a high risk to affected systems.
Compliance Impact

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Detection Guidance

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Executive Summary

The vulnerability exists in Ayukov NFTP client version 1.71, specifically in the handling of the SYST command. It is a buffer overflow vulnerability that allows remote attackers to send a specially crafted SYST command with an oversized payload. This triggers the buffer overflow and enables the attacker to execute arbitrary code on the affected system.

In particular, the attacker can execute a bind shell on port 5150, which means they can gain remote control over the system through that port.

Mitigation Strategies

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