Buffer overflow in Ik80 Yatinywinftp
CVE-2020-36964
YATinyWinFTP contains a denial of service vulnerability that allows attackers to crash the FTP service by sending a 272-byte buffer with a trailing space. Attackers can exploit the service by connecting and sending a malformed command that triggers a buffer overflow and service crash.
Vulnerability class: Buffer Overflow
EPSS: 0.004 (32.3th percentile) — read the EPSS interpretation.
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.
Affected products
- Ik80 Yatinywinftp — versions 0.0.5
Weakness classification (CWE)
References
- disclosure@vulncheck.com (exploit)
- disclosure@vulncheck.com (product)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2020-36964?
- CVE-2020-36964 is a critical-severity vulnerability in Ik80 Yatinywinftp, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2026-01-28.
- How severe is CVE-2020-36964?
- Critical severity. CVSS v3 base score is 9.8 out of 10.