curl's code for managing SSH connections when SFTP was done using the wolfSSH powered backend was flawed and missed host verification mechanisms. This prevents curl from detecting MITM attackers and more.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Curl
  • Curl

No data.

No data.

References
Link Providers
http://www.openwall.com/lists/oss-security/2025/11/05/2 cve-icon cve-icon
https://curl.se/docs/CVE-2025-10966.html cve-icon cve-icon cve-icon
https://curl.se/docs/CVE-2025-10966.json cve-icon cve-icon cve-icon
https://github.com/curl/curl/commit/b011e3fcfb06d6c027859 cve-icon
https://hackerone.com/reports/3355218 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-10966 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-10966 cve-icon
History

Mon, 10 Nov 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}

 ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

Mon, 10 Nov 2025 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Curl
Curl curl
Vendors & Products Curl
Curl curl

Sat, 08 Nov 2025 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-322
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}

threat_severity

Moderate

Fri, 07 Nov 2025 08:30:00 +0000

Type Values Removed Values Added
References

Fri, 07 Nov 2025 07:45:00 +0000

Type Values Removed Values Added
Description curl's code for managing SSH connections when SFTP was done using the wolfSSH powered backend was flawed and missed host verification mechanisms. This prevents curl from detecting MITM attackers and more.
Title missing SFTP host verification with wolfSSH
References
cve-icon MITRE

Status: PUBLISHED

Assigner: curl

Published:

Updated: 2025-11-10T20:26:07.282Z

Reserved: 2025-09-25T10:15:10.502Z

Link: CVE-2025-10966

cve-icon Vulnrichment

Updated: 2025-11-07T08:05:50.150Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-11-07T08:15:39.617

Modified: 2025-11-12T16:20:22.257

Link: CVE-2025-10966

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-11-07T07:26:30Z

Links: CVE-2025-10966 - Bugzilla