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.

CVSS 3.1

4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-25)

CWE

CWE-322

Published

2025-11-07

Modified

2026-10-19

Record from

the NVD, synced 2026-10-19

Affected

• haxx:curl

References

• https://curl.se/docs/CVE-2025-10966.html
• https://curl.se/docs/CVE-2025-10966.json
• https://hackerone.com/reports/3355218
• http://www.openwall.com/lists/oss-security/2025/11/05/2
• https://cert-portal.siemens.com/productcert/html/ssa-253495.html

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