CVE-2020-36964

CRITICAL

YATinyWinFTP >=0.0.5 <0.0.5 - Denial of Service via Malformed Command Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-36964. PoCs published by strider.

AI-analyzed exploit summary This exploit sends a 272-byte buffer followed by a space to the YATinyWinFTP service, causing a denial of service (DoS) by crashing the application. It leverages a buffer overflow vulnerability in the FTP command handling.

Description

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.

Exploits (1)

exploitdb WORKING POC
by strider · pythonremotewindows
https://www.exploit-db.com/exploits/49127

This exploit sends a 272-byte buffer followed by a space to the YATinyWinFTP service, causing a denial of service (DoS) by crashing the application. It leverages a buffer overflow vulnerability in the FTP command handling.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: YATinyWinFTP (version unspecified)
No auth needed
Prerequisites: Network access to the target FTP service · Target service must be running YATinyWinFTP
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/49127

Scores

CVSS v3 9.8
EPSS 0.0040
EPSS Percentile 31.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-787
Status published
Products (1)
ik80/YATinyWinFTP 0.0.5
Published Jan 28, 2026
Tracked Since Feb 18, 2026