PT-2025-26996 · Leadsec · Leadsec Ssl Vpn

Published 2025-06-26 · Updated 2025-06-26 · CVE-2025-34047

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions: Leadsec SSL VPN (formerly Lenovo NetGuard) (affected versions not specified)

Description: A path traversal issue exists, allowing unauthenticated attackers to read arbitrary files on the 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.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Path traversal

RCE

Weakness Enumeration

CWE-22

CWE-20

Related Identifiers

CVE-2025-34047

Affected Products

Leadsec Ssl Vpn

References · 9

• 🔥 https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cnvd/2021/CNVD-2021-64035.yaml · Exploit
• https://osv.dev/vulnerability/CVE-2025-34047 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-34047 · Security Note
• https://twitter.com/CVEnew/status/1938290028175659249 · Twitter Post
• https://cnvd.org.cn/flaw/show/CNVD-2021-64035 · Note
• https://vulncheck.com/advisories/leadsec-vpn-path-traversal-file-read · Note
• https://t.me/cvetracker/27146 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1938292631533924410 · Twitter Post
• https://leadsec.com.cn · Note