github.comexploit
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cnvd/2021/CNVD-2021-64035.yaml CVE-2025-34047
HIGH
Leadsec VPN Path Traversal Arbitrary File Read
Record summary
CVE-2025-34047 has a selected CVSS score of 8.7 (high).
Description
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.
Description source: CVE List
Exploitation context
Known exploitation
- VulnCheck KEV
- Listed · Jun 26, 2025 · VulnCheck
- Reported exploitation
- Observed · VulnCheck
CISA SSVC decision
ExploitationPoC
AutomatableYes
Technical impactPartial
CISA Coordinator · SSVC 2.0.3 · Evaluated Dec 23, 2025 · Source: CVE List
Affected products and versions
2| Product | Source | Version range | Status |
|---|---|---|---|
Default status: unaffected | CVE List | Version range not supplied | affected |
Leadsec SSL VPNBrowse Leadsec / Leadsec SSL VPN | VulnCheck | Version data not supplied | |
References
5nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2025-34047 vulncheck.comThird-party advisory
https://vulncheck.com/advisories/leadsec-vpn-path-traversal-file-read cnvd.org.cnThird-party advisory
https://www.cnvd.org.cn/flaw/show/CNVD-2021-64035 leadsec.com.cnproduct
https://www.leadsec.com.cn/