Authenticated code execution via traversed PUTFILE path
Published Dec 15, 2025 · Updated Dec 15, 2025
Path traversal in NetSupport Manager before 14.12.0001 allows remote authenticated users to execute code through a crafted PUTFILE request. The Connectivity Server/Gateway handler accepts directory traversal sequences in an attacker-supplied filename and writes the supplied file outside its intended directory. A valid Gateway Key is required; placing a DLL or executable in a privileged path runs attacker-controlled code as the connectivity service.
Summary
What happened
Path traversal in NetSupport Manager before 14.12.0001 allows remote authenticated users to execute code through a crafted PUTFILE request. The Connectivity Server/Gateway handler accepts directory traversal sequences in an attacker-supplied filename and writes the supplied file outside its intended directory. A valid Gateway Key is required; placing a DLL or executable in a privileged path runs attacker-controlled code as the connectivity service.
The record
- CVE
- CVE-2025-34181
- Published
- Dec 15, 2025
- Updated
- Dec 15, 2025
- Vendor
- NetSupport Ltd.
- Product
- NetSupport Manager
- Classifications
- CWE-22, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 15, 2025CVE publishedPublication date reported by the CVE source.
- Dec 15, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <14.12.0001
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Exploiting NetSupport Gatewayproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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