CVE-2025-14017

broken TLS options for threaded LDAPS

MEDIUM

6.3

CVSS Score

Published: January 8, 2026 at 10:07 AM UTC

Updated: September 15, 2026 at 07:35 AM UTC

1 product affected across 1 vendorCurl

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Severity

MEDIUM6.3

Exploit prediction

EPSS 0.1%

SSVC

No known exploit

Description

When doing multi-threaded LDAPS transfers (LDAP over TLS) with libcurl, changing TLS options in one thread would inadvertently change them globally and therefore possibly also affect other concurrently setup transfers. Disabling certificate verification for a specific transfer could unintentionally disable the feature for other threads as well.

Affected

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

Curl · Haxx

95%

7.17.0 ≤ v < 8.14.27.17.0 ≤ v < 8.18.08.15.0 ≤ v < 8.16.18.17.0 ≤ v < 8.18.07.17.0 7.17.1 7.18.0 7.18.1 7.18.2 7.19.0 7.19.1 7.19.2 7.19.3 7.19.4 7.19.5 7.19.6 7.19.7 7.20.0 7.20.1 7.21.0 7.21.1 7.21.2 7.21.3 7.21.4 7.21.5 7.21.6 7.21.7 7.22.0 7.23.0 7.23.1 7.24.0 7.25.0 7.26.0 7.27.0 7.28.0 7.28.1 7.29.0 7.30.0 7.31.0 7.32.0 7.33.0 7.34.0 7.35.0 7.36.0 7.37.0 7.37.1 7.38.0 7.39.0 7.40.0 7.41.0 7.42.0 7.42.1 7.43.0 7.44.0 7.45.0 7.46.0 7.47.0 7.47.1 7.48.0 7.49.0 7.49.1 7.50.0 7.50.1 7.50.2 7.50.3 7.51.0 7.52.0 7.52.1 7.53.0 7.53.1 7.54.0 7.54.1 7.55.0 7.55.1 7.56.0 7.56.1 7.57.0 7.58.0 7.59.0 7.60.0 7.61.0 7.61.1 7.62.0 7.63.0 7.64.0 7.64.1 7.65.0 7.65.1 7.65.2 7.65.3 7.66.0 7.67.0 7.68.0 7.69.0 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 8.17.0 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 8.9.1ccba0d10b6baf5c73cae8cf4fb3f29f0f55c5a34

Vendor states this is fixed in 39d1976b7f709a516e3243338ebc0443bdd8d56d (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 8.18.0, 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 (3)

Vendor Advisory

Source: cverecord

https://curl.se/docs/CVE-2025-14017.json

Vendor Advisory

Source: cverecord

https://curl.se/docs/CVE-2025-14017.html

Mailing ListThird Party Advisory

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

http://www.openwall.com/lists/oss-security/2026/01/07/3

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

6.3MEDIUMCISA-ADP

Attack Vector: LOCAL
Complexity: HIGH
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-567NVD-CWE-Other

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