WinSCP before 5.17.10 allows remote attackers to execute arbitrary programs when the URL handler encounters a crafted URL that loads session settings. (For example, this is exploitable in a default installation in which WinSCP is the handler for sftp:// URLs.)
Fix
Patch, vendor advisory and mitigation references on NVD 8
- https://github.com/winscp/winscp/commit/faa96e8144e6925a380f94a97aa382c9427f688d Patch, Third Party Advisory
- https://winscp.net/eng/docs/history#5.17.10 Release Notes, Vendor Advisory
- https://winscp.net/eng/docs/rawsettings Vendor Advisory
- https://winscp.net/tracker/1943 Patch, Vendor Advisory
- https://github.com/winscp/winscp/commit/faa96e8144e6925a380f94a97aa382c9427f688d Patch, Third Party Advisory
- https://winscp.net/eng/docs/history#5.17.10 Release Notes, Vendor Advisory
- https://winscp.net/eng/docs/rawsettings Vendor Advisory
- https://winscp.net/tracker/1943 Patch, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.8 · winscpNVD modified 2026-10-08 21:17
Affected (CPE criteria) 1
cpe:2.3:a:winscp:winscp:*:*:*:*:*:*:*:*
References 8
- https://github.com/winscp/winscp/commit/faa96e8144e6925a380f94a97aa382c9427f688d Patch, Third Party Advisory
- https://winscp.net/eng/docs/history#5.17.10 Release Notes, Vendor Advisory
- https://winscp.net/eng/docs/rawsettings Vendor Advisory
- https://winscp.net/tracker/1943 Patch, Vendor Advisory
- https://github.com/winscp/winscp/commit/faa96e8144e6925a380f94a97aa382c9427f688d Patch, Third Party Advisory
- https://winscp.net/eng/docs/history#5.17.10 Release Notes, Vendor Advisory
- https://winscp.net/eng/docs/rawsettings Vendor Advisory
- https://winscp.net/tracker/1943 Patch, Vendor Advisory