CVE-2025-10966
MEDIUMCVSS 4.3/10EPSS 0.36%
Last modified
CVE-2025-10966 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Haxx | Curl | >= 7.69.0, < 8.17.0 |
References
- https://curl.se/docs/CVE-2025-10966.htmlPatch, Vendor Advisory
- https://curl.se/docs/CVE-2025-10966.jsonVendor Advisory
- https://hackerone.com/reports/3355218Exploit, Issue Tracking, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2025/11/05/2Mailing List, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2025-10966?
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.
How severe is CVE-2025-10966?
CVE-2025-10966 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.
How do I fix CVE-2025-10966?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2025-10966?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST