CVE-2019-25361
CRITICAL
2026-02-18
[email protected]
9.8
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Feb 19, 2026 - 15:53 vuln.today
Public exploit code
CVE Published
Feb 18, 2026 - 22:16 nvd
CRITICAL 9.8
Tags
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.
Analysis
Buffer overflow in Ayukov NFTP client 1.71 in SYST command handling allows remote FTP servers to execute arbitrary code on connecting clients. PoC available.
Technical Context
CWE-121 stack overflow triggered by oversized SYST command response from a malicious FTP server.
Affected Products
['Ayukov NFTP 1.71']
Remediation
Update NFTP client. Validate server response lengths.
Priority Score
69
Low
Medium
High
Critical
KEV: 0
EPSS: +0.2
CVSS: +49
POC: +20
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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