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CVE-2025-15224— libssh key passphrase bypass without agent set

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curl错误使用本地SSH代理进行公钥认证。

AI Predicted 4.3 Difficulty: Moderate EPSS 0.48% · P39

Possible ATT&CK Techniques 1 AI

T1552.004 · Private Keys

Affected Version Matrix 74

VendorProduct Version RangeStatus
curl curl 7.58.0< 8.14.2 affected
8.15.0< 8.16.1 affected
8.17.0< 8.18.0 affected
c92d2e14cfb0db662f958effd2ac86f995cf1b5a< 16d5f2a5660c61cc27bd5f1c7f512391d1c927aa affected
8.17.0 affected
8.16.0 affected
8.15.0 affected
8.14.1 affected
… +66 more rows
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I. Basic Information for CVE-2025-15224

Vulnerability Information
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Vulnerability Title
libssh key passphrase bypass without agent set
Source: CVE Program / CVE List V5
Vulnerability Description
When doing SSH-based transfers using either SCP or SFTP, and asked to do public key authentication, curl would wrongly still ask and authenticate using a locally running SSH agent.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
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curl错误使用本地SSH代理进行公钥认证。
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 7.58.0 ~ 8.14.2 -
curl curl c92d2e14cfb0db662f958effd2ac86f995cf1b5a ~ 16d5f2a5660c61cc27bd5f1c7f512391d1c927aa -
curl curl 8.17.0 -

II. Public POCs for CVE-2025-15224

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III. Intelligence Information for CVE-2025-15224

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Other References for CVE-2025-15224 (3)

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

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-2025-14017 broken TLS options for threaded LDAPS
CVE-2025-13034 No QUIC certificate pinning with GnuTLS

IV. Related Vulnerabilities

Same product: curl
Same vendor: curl
Same weakness: CWE-287

V. Comments for CVE-2025-15224

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