Buffer overflow in Ayukov Nftp Client
CVE-2019-25361
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (49.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.000
Affected products
- Ayukov Nftp Client — versions 1.71
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/47576 (exploit)
- ayukov.com/nftp/ (product)
- www.vulncheck.com/advisories/ayukov-nftp-client-syst-buffer-overflow (third-party-advisory)
Frequently asked questions
- What is CVE-2019-25361?
- CVE-2019-25361 is a critical-severity vulnerability in Ayukov Nftp Client, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2026-02-18.
- How severe is CVE-2019-25361?
- Critical severity. CVSS v3 base score is 9.8 out of 10.