CVE-2025-10966

missing SFTP host verification with wolfSSH

MEDIUM

4.3

CVSS Score

Published: November 7, 2025 at 07:26 AM UTC

Updated: October 19, 2026 at 01:10 PM UTC

2 products affected across 2 vendorsCurlRUGGEDCOM RST2428P Firmware

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Severity

MEDIUM4.3

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Curl · Haxx

95%

7.69.0 ≤ v < 8.17.06773c7ca65cf2183295e56603f9b86a5ce816a067.69.0 7.69.1 7.70.0 7.71.0 7.71.1 7.72.0 7.73.0 7.74.0 7.75.0 7.76.0 7.76.1 7.77.0 7.78.0 7.79.0 7.79.1 7.80.0 7.81.0 7.82.0 7.83.0 7.83.1 7.84.0 7.85.0 7.86.0 7.87.0 7.88.0 7.88.1 8.0.0 8.0.1 8.1.0 8.1.1 8.1.2 8.10.0 8.10.1 8.11.0 8.11.1 8.12.0 8.12.1 8.13.0 8.14.0 8.14.1 8.15.0 8.16.0 8.2.0 8.2.1 8.3.0 8.4.0 8.5.0 8.6.0 8.7.0 8.7.1 8.8.0 8.9.0 8.9.1

Vendor states this is fixed in b011e3fcfb06d6c0278595ee2ee297036fbe9793 (fixed)

Affected range stops below 8.14.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.16.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.17.0, so it looks safe — our inference, not a vendor statement

RUGGEDCOM RST2428P Firmware · Siemens

60%

v < V4.0

Affected range stops below V4.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

Vendor Advisory

Source: cverecord

https://curl.se/docs/CVE-2025-10966.json

PatchVendor Advisory

Source: cverecord

https://curl.se/docs/CVE-2025-10966.html

ExploitIssue TrackingThird Party Advisory

Source: cverecord

https://hackerone.com/reports/3355218

Mailing ListPatchThird Party Advisory

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.openwall.com/lists/oss-security/2025/11/05/2

Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e

https://cert-portal.siemens.com/productcert/html/ssa-253495.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-noinfoCWE-322

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