VulnerabilityModified
CVE-2021-3331
WinSCP before 5.17.10 allows remote attackers to execute arbitrary programs when the URL handler encounters a crafted URL that loads session settings.
CRITICAL 9.8EPSS 7.61%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (7.61%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.)
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 7.61% probability · 94th percentile
- CISA KEV
- Not listed
- Affected
- winscp/winscp
- Source
- cve@mitre.org
References
- https://github.com/winscp/winscp/commit/faa96e8144e6925a380f94a97aa382c9427f688dPatch, Third Party Advisory
- https://winscp.net/eng/docs/history#5.17.10Release Notes, Vendor Advisory
- https://winscp.net/eng/docs/rawsettingsVendor Advisory
- https://winscp.net/tracker/1943Patch, Vendor Advisory
- https://github.com/winscp/winscp/commit/faa96e8144e6925a380f94a97aa382c9427f688dPatch, Third Party Advisory
- https://winscp.net/eng/docs/history#5.17.10Release Notes, Vendor Advisory
- https://winscp.net/eng/docs/rawsettingsVendor Advisory
- https://winscp.net/tracker/1943Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.