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CVE-2025-15079— libssh global known_hosts override

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libcurl错误接受未在指定known_hosts文件中列出的SSH主机连接。

AI Predicted 5.9 Difficulty: Moderate EPSS 0.55% · P44

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

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< adca486c125d9a6d9565b9607a19dce803a8b479 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-2025-15079

Vulnerability Information
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Vulnerability Title
libssh global known_hosts override
Source: CVE Program / CVE List V5
Vulnerability Description
When doing SSH-based transfers using either SCP or SFTP, and setting the known_hosts file, libcurl could still mistakenly accept connecting to hosts *not present* in the specified file if they were added as recognized in the libssh *global* known_hosts file.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对宿主不匹配的证书验证不恰当
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libcurl错误接受未在指定known_hosts文件中列出的SSH主机连接。
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 ~ adca486c125d9a6d9565b9607a19dce803a8b479 -
curl curl 8.17.0 -

II. Public POCs for CVE-2025-15079

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III. Intelligence Information for CVE-2025-15079

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Other References for CVE-2025-15079 (3)

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

CVE-2025-15224 libssh key passphrase bypass without agent set
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-297

V. Comments for CVE-2025-15079

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