CVE-2025-34118

Linknat VOS Manager Path Traversal File Disclosure

State: Published
Severity: 8.7 High
Published: Jul 16, 2025
Updated: May 15, 2026
Reserved: Apr 15, 2025

Description

A path traversal vulnerability exists in Linknat VOS Manager versions prior to 2.1.9.07, including VOS2009 and early VOS3000 builds, that allows unauthenticated remote attackers to read arbitrary files on the server. The vulnerability is accessible via multiple localized subpaths such as '/eng/', '/chs/', or '/cht/', where the 'js/lang_en_us.js' or equivalent files are loaded. By injecting encoded traversal sequences such as '%c0%ae%c0%ae' into the request path, attackers can bypass input validation and disclose sensitive files.

Scores

CVSS	Score	Vector	Source
4.0	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	VulnCheck

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-20 Improper Input Validation

Affected Products

Product	Versions
VOS ManagerLinknat Technology	VOS2009 and earlierAffected VOS3000 2.1.9.06 and earlierAffected

References

http://www.linknat.com/product
https://web.archive.org/web/20151013001957/http://www.wooyun.org/bugs/wooyun-2010-0145458third-party-advisory
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/scanner/http/linknat_vos_traversal.rbexploit
https://www.vulncheck.com/advisories/linknat-vos-manager-path-traversal-file-disclosurethird-party-advisory

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