CVE-2025-34118

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.

PUBLISHED Reserved 2025-04-15 | Published 2025-07-16 | Updated 2026-05-15 | Assigner VulnCheck

Problem types

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

CWE-20 Improper Input Validation

Product status

Credits

zqsky of WooYun finder

References

www.linknat.com/ product

web.archive.org/...//www.wooyun.org/bugs/wooyun-2010-0145458 third-party-advisory

raw.githubusercontent.com/...r/http/linknat_vos_traversal.rb exploit

www.vulncheck.com/...-manager-path-traversal-file-disclosure third-party-advisory

cve.org (CVE-2025-34118)

nvd.nist.gov (CVE-2025-34118)

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