CVE-2021-47791

SmartFTP Client 10.0.2909.0 - 'Multiple' Denial of Service

SmartFTP Client 10.0.2909.0 contains multiple denial of service vulnerabilities that allow attackers to crash the application through specific input manipulation. Attackers can trigger crashes by entering malformed paths, using invalid IP addresses, or clearing connection history in the client's interface.

Affected

Smartftp · SmartFTP Client

CVSS v4.0 VULNCHECK

4.6 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/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

CVSS v3.1 VULNCHECK

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.52% chance of exploitation in the next 30 days, 43rd percentile

Published

2026-01-15

Updated

2026-01-16

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/50266

Security advisories

• https://www.vulncheck.com/advisories/smartftp-client-multiple-denial-of-service
• https://www.smartftp.com/en-us
• https://www.smartftp.com/en-us/download

References

• CVE Record
• NVD entry