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CVE-2025-14017— broken TLS options for threaded LDAPS

Quick assessment

Affected
curl curl
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

curl是cURL开源的一款用于从服务器传输数据或向服务器传输数据的工具。 curl存在安全漏洞，该漏洞源于多线程LDAPS传输中TLS选项全局更改，可能导致证书验证意外禁用。

AI Predicted 7.5 Difficulty: Easy EPSS 0.11% · P1

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 143

VendorProduct Version RangeStatus
curl curl 8.17.0≤ 8.17.0 affected
8.16.0≤ 8.16.0 affected
8.15.0≤ 8.15.0 affected
8.14.1≤ 8.14.1 affected
8.14.0≤ 8.14.0 affected
8.13.0≤ 8.13.0 affected
8.12.1≤ 8.12.1 affected
8.12.0≤ 8.12.0 affected
… +135 more rows
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I. Basic Information for CVE-2025-14017

Vulnerability Information
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Vulnerability Title
broken TLS options for threaded LDAPS
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
curl 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
curl是cURL开源的一款用于从服务器传输数据或向服务器传输数据的工具。 curl存在安全漏洞，该漏洞源于多线程LDAPS传输中TLS选项全局更改，可能导致证书验证意外禁用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
curl curl 8.17.0 ~ 8.17.0 -

II. Public POCs for CVE-2025-14017

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III. Intelligence Information for CVE-2025-14017

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Other References for CVE-2025-14017 (2)

Same Patch Batch · curl · 2026-01-08 · 6 CVEs total

CVE-2025-15224 libssh key passphrase bypass without agent set
CVE-2025-15079 libssh global known_hosts override
CVE-2025-14524 bearer token leak on cross-protocol redirect
CVE-2025-14819 OpenSSL partial chain store policy bypass
CVE-2025-13034 No QUIC certificate pinning with GnuTLS

IV. Related Vulnerabilities

Same product: curl
Same vendor: curl

V. Comments for CVE-2025-14017

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