In WinSCP before 5.14 beta, due to missing validation, the scp implementation would accept arbitrary files sent by the server, potentially overwriting unrelated files. This affects TSCPFileSystem::SCPSink in core/ScpFileSystem.cpp.
https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt
https://github.com/winscp/winscp/commit/49d876f2c5fc00bcedaa986a7cf6dedd6bf16f54
http://www.securityfocus.com/bid/106526
https://www.oracle.com/security-alerts/cpujan2020.html
https://winscp.net/tracker/1675
https://winscp.net/eng/docs/history
Source: Mitre, NVD
Published: 2019-01-10
Updated: 2026-06-17
Base Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Severity: High
EPSS: 0.0066