Critical 9.8Published Feb 18, 2026

CVE-2019-25361Ayukov NFTP client 1.71 - 'SYST' Buffer Overflow

Updated under an hour ago (Oct 26, 2026, 11:00 AM ET)

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Every CVE for Ayukov NFTP client

Exploited in the last 30 days

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: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-121
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Feb 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Ayukov Ayukov NFTP client ayukov:nftp_client (from the name)	1.71	CNA record

References

https://www.exploit-db.com/exploits/47576exploit
http://ayukov.com/nftp/product
https://www.vulncheck.com/advisories/ayukov-nftp-client-syst-buffer-overflowthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.