SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-12146

A Directory Traversal issue was discovered in SSHServerAPI.dll in Progress ipswitch WS_FTP Server 2018 before 8.6.1.

CRITICAL 9.1EPSS 3.97%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.97%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.0
9.1 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
3.97% probability · 90th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-22
Affected
ipswitch/ws ftp server
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 3.97%27 October 202627 October 2026

EPSS 4.0% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.