VULNERABILITY INTELLIGENCE
CVE-2010-20121
CVSS score9.3 CRITICAL
EPSS probability4.63%
CISA KEVNot currently listed
Published2025-08-21
Last modified2026-06-16
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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.”
Weakness classification
- CWE-121: Stack-based Buffer Overflow
Primary references
- disclosure@vulncheck.com — Exploit, Third Party Advisory
- disclosure@vulncheck.com — Exploit
- disclosure@vulncheck.com — Exploit, Mailing List, Third Party Advisory
- disclosure@vulncheck.com — Exploit, VDB Entry
- disclosure@vulncheck.com — Exploit, VDB Entry
- disclosure@vulncheck.com — Exploit, VDB Entry
- disclosure@vulncheck.com — Exploit, VDB Entry
- disclosure@vulncheck.com — Third Party Advisory
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 — Exploit
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 — Exploit, Mailing List, Third Party Advisory
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 — Exploit, VDB Entry
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 — Exploit, VDB Entry