CVE-2025-34047 (GCVE-0-2025-34047)

Vulnerability from cvelistv5 – Published: 2025-06-26 16:10 – Updated: 2025-12-23 16:49 X_Known Exploited Vulnerability
VLAI?
Title
Leadsec VPN Path Traversal Arbitrary File Read
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.
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
Assigner
References
Impacted products
Vendor Product Version
Beijing NetGuard Nebula Information Technology Co., Ltd. Leadsec SSL VPN Affected: 0
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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