CVE-2025-34047

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  2. Vulnerabilities (CVE)
  3. CVE-2025-34047
CVSS

No CVSS.

A

path traversal vulnerability exists in the Leadsec SSL VPN (formerly Lenovo NetGuard), allowing unauthenticated attackers to read arbitrary files on the underlying system via the ostype parameter in the /vpn/user/download/client endpoint. This flaw arises from insufficient input sanitation, enabling traversal sequences to escape the intended directory and access sensitive files. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-05 UTC.

References
Link Resource
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cnvd/2021/CNVD-2021-64035.yaml
https://vulncheck.com/advisories/leadsec-vpn-path-traversal-file-read
https://www.cnvd.org.cn/flaw/show/CNVD-2021-64035
https://www.leadsec.com.cn/
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cnvd/2021/CNVD-2021-64035.yaml
Configurations

No configuration.

History

23 Dec 2025, 17:15

Type Values Removed Values Added
References () https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cnvd/2021/CNVD-2021-64035.yaml - () https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cnvd/2021/CNVD-2021-64035.yaml -

20 Nov 2025, 21:16

Type Values Removed Values Added
Summary (en) A path traversal vulnerability exists in the Leadsec SSL VPN (formerly Lenovo NetGuard), allowing unauthenticated attackers to read arbitrary files on the underlying system via the ostype parameter in the /vpn/user/download/client endpoint. This flaw arises from insufficient input sanitation, enabling traversal sequences to escape the intended directory and access sensitive files. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-10 UTC. (en) A path traversal vulnerability exists in the Leadsec SSL VPN (formerly Lenovo NetGuard), allowing unauthenticated attackers to read arbitrary files on the underlying system via the ostype parameter in the /vpn/user/download/client endpoint. This flaw arises from insufficient input sanitation, enabling traversal sequences to escape the intended directory and access sensitive files. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-05 UTC.

17 Nov 2025, 22:15

Type Values Removed Values Added
Summary (en) A path traversal vulnerability exists in the Leadsec SSL VPN (formerly Lenovo NetGuard), allowing unauthenticated attackers to read arbitrary files on the underlying system via the ostype parameter in the /vpn/user/download/client endpoint. This flaw arises from insufficient input sanitation, enabling traversal sequences to escape the intended directory and access sensitive files. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-07 UTC. (en) A path traversal vulnerability exists in the Leadsec SSL VPN (formerly Lenovo NetGuard), allowing unauthenticated attackers to read arbitrary files on the underlying system via the ostype parameter in the /vpn/user/download/client endpoint. This flaw arises from insufficient input sanitation, enabling traversal sequences to escape the intended directory and access sensitive files. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-10 UTC.

17 Nov 2025, 21:15

Type Values Removed Values Added
Summary
  • (es) Existe una vulnerabilidad de path traversal en Leadsec SSL VPN (anteriormente Lenovo NetGuard), que permite a atacantes no autenticados leer archivos arbitrarios en el sistema subyacente mediante el parámetro ostype en el endpoint /vpn/user/download/client. Esta falla se debe a una depuración de entrada insuficiente, lo que permite que las secuencias de cruce escapen del directorio de destino y accedan a archivos confidenciales.
Summary (en) A path traversal vulnerability exists in the Leadsec SSL VPN (formerly Lenovo NetGuard), allowing unauthenticated attackers to read arbitrary files on the underlying system via the ostype parameter in the /vpn/user/download/client endpoint. This flaw arises from insufficient input sanitation, enabling traversal sequences to escape the intended directory and access sensitive files. (en) A path traversal vulnerability exists in the Leadsec SSL VPN (formerly Lenovo NetGuard), allowing unauthenticated attackers to read arbitrary files on the underlying system via the ostype parameter in the /vpn/user/download/client endpoint. This flaw arises from insufficient input sanitation, enabling traversal sequences to escape the intended directory and access sensitive files. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-07 UTC.

26 Jun 2025, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-06-26 16:15

Updated : 2025-12-23 17:15

NVD link : CVE-2025-34047

Mitre link : CVE-2025-34047

CVE.ORG link : CVE-2025-34047

JSON object : View

Products Affected

No product.

CWE
CWE-20

Improper Input Validation

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')