CVE-2021-3331 - Vulnerability Details - OpenCVE

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.)

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.07703.

Exploitation none

Automatable yes

Technical Impact total

Vendors	Products
Winscp Subscribe	Winscp Subscribe

Configuration 1 [-]

cpe:2.3:a:winscp:winscp:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2021-26662	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.)

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/winscp/winscp/commit/faa96e8144e6925a380f94a97aa382c9427f688d
https://winscp.net/eng/docs/history#5.17.10
https://winscp.net/eng/docs/rawsettings
https://winscp.net/tracker/1943

History

Mon, 09 Nov 2026 20:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-01-27T20:22:25.000Z

Updated: 2026-10-08T21:03:32.228Z

Reserved: 2021-01-27T00:00:00.000Z

Link: CVE-2021-3331

Vulnrichment

Updated: 2024-08-03T16:53:17.236Z

NVD

Status : Modified

Published: 2021-01-27T21:15:16.840

Modified: 2026-10-08T21:17:39.890

Link: CVE-2021-3331

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

NVD-CWE-Other

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