CVE-2019-12146

9.1 criticalEPSS 4.0%

Critical (9.1) in ipswitch ws ftp server. EPSS 4.0% chance of exploitation in the next 30 days.

A Directory Traversal issue was discovered in SSHServerAPI.dll in Progress ipswitch WS_FTP Server 2018 before 8.6.1. Attackers have the ability to abuse a flaw in the SCP listener by crafting strings using specific patterns to write files and create directories outside of their authorized directory.

Severity

CVSS 3.0

9.1 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS: 4.0% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)
CWE: CWE-22
Published: 2019-06-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

ipswitch:ws_ftp_server

References

https://docs.ipswitch.com/WS_FTP_Server2018/ReleaseNotes/index.htm#49242.htm
https://docs.ipswitch.com/WS_FTP_Server2018/ReleaseNotes/index.htm#49242.htm

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