CVE-2025-34047 (GCVE-0-2025-34047)
Vulnerability from cvelistv5
Published
2025-06-26 16:10
Modified
2025-12-23 16:49
Severity ?
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-20 - Improper Input Validation
Summary
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
Impacted products
Vendor Product Version
Beijing NetGuard Nebula Information Technology Co., Ltd. Leadsec SSL VPN Version: 0
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