EasyFTP Server versions up to 1.7.0.11 contain a stack-based buffer overflow vulnerability in the FTP command parser. When processing the CWD (Change Working Directory) command, the server fails to properly validate the length of the input string, allowing attackers to overwrite memory on the stack. This flaw enables remote code execution without authentication, as EasyFTP allows anonymous access by default. The vulnerability was resolved in version 1.7.0.12, after which the product was renamed “UplusFtp.”
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 10 Sep 2025 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Easyftp Server Project
Easyftp Server Project easyftp Server
CPEs cpe:2.3:a:easyftp_server_project:easyftp_server:*:*:*:*:*:*:*:*
Vendors & Products Easyftp Server Project
Easyftp Server Project easyftp Server
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Sat, 23 Aug 2025 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Kmint21 Software
Kmint21 Software easyftp Server
Vendors & Products Kmint21 Software
Kmint21 Software easyftp Server

Fri, 22 Aug 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 21 Aug 2025 20:15:00 +0000

Type Values Removed Values Added
Description EasyFTP Server versions up to 1.7.0.11 contain a stack-based buffer overflow vulnerability in the FTP command parser. When processing the CWD (Change Working Directory) command, the server fails to properly validate the length of the input string, allowing attackers to overwrite memory on the stack. This flaw enables remote code execution without authentication, as EasyFTP allows anonymous access by default. The vulnerability was resolved in version 1.7.0.12, after which the product was renamed “UplusFtp.”
Title EasyFTP Server <= 1.7.0.11 CWD Command Stack Buffer Overflow
Weaknesses CWE-121
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2025-08-22T15:33:41.726Z

Reserved: 2025-08-20T20:33:55.844Z

Link: CVE-2010-20121

cve-icon Vulnrichment

Updated: 2025-08-22T15:33:28.530Z

cve-icon NVD

Status : Analyzed

Published: 2025-08-21T20:15:31.610

Modified: 2025-09-10T20:03:36.037

Link: CVE-2010-20121

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-08-23T11:53:19Z