CVE-2025-34181
NetSupport Manager < 14.12.0001 Authenticated Path Traversal Arbitrary File Write RCE
Description
NetSupport Manager < 14.12.0001 contains an arbitrary file write vulnerability in its Connectivity Server/Gateway PUTFILE request handler. An attacker with a valid Gateway Key can supply a crafted filename containing directory traversal sequences to write files to arbitrary locations on the server. This can be leveraged to place attacker-controlled DLLs or executables in privileged paths and achieve remote code execution in the context of the NetSupport Manager connectivity service.
INFO
Published Date :
Dec. 15, 2025, 3:15 p.m.
Last Modified :
Oct. 23, 2026, 10:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-34181
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update NetSupport Manager to version 14.12.0.305.
- Apply vendor-supplied security patches.
- Restrict access to the Connectivity Server/Gateway.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-34181.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-34181 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-34181
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-34181 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-34181 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Changed Translation Title: Manager de NetSupport Software, Description: NetSupport Manager < 14.12.0001 contiene una vulnerabilidad de escritura arbitraria de archivos en su gestor de solicitudes PUTFILE del Servidor de Conectividad/Gateway. Un atacante con una clave de Gateway válida puede proporcionar un nombre de archivo manipulado que contenga secuencias de salto de directorio para escribir archivos en ubicaciones arbitrarias en el servidor. Esto puede ser aprovechado para colocar DLLs o ejecutables controlados por el atacante en rutas privilegiadas y lograr la ejecución remota de código en el contexto del servicio de conectividad de NetSupport Manager. Title: Manager de NetSupport Software, Description: NetSupport Manager anterior a 14.12.0001 contiene una vulnerabilidad de escritura arbitraria de archivos en su gestor de solicitudes PUTFILE del Servidor de Conectividad/Gateway. Un atacante con una clave de Gateway válida puede proporcionar un nombre de archivo manipulado que contenga secuencias de salto de directorio para escribir archivos en ubicaciones arbitrarias en el servidor. Esto puede ser aprovechado para colocar DLLs o ejecutables controlados por el atacante en rutas privilegiadas y lograr la ejecución remota de código en el contexto del servicio de conectividad de NetSupport Manager. -
CVE Translated by [email protected]
Oct. 07, 2026
Action Type Old Value New Value Added Translation Title: Manager de NetSupport Software, Description: NetSupport Manager < 14.12.0001 contiene una vulnerabilidad de escritura arbitraria de archivos en su gestor de solicitudes PUTFILE del Servidor de Conectividad/Gateway. Un atacante con una clave de Gateway válida puede proporcionar un nombre de archivo manipulado que contenga secuencias de salto de directorio para escribir archivos en ubicaciones arbitrarias en el servidor. Esto puede ser aprovechado para colocar DLLs o ejecutables controlados por el atacante en rutas privilegiadas y lograr la ejecución remota de código en el contexto del servicio de conectividad de NetSupport Manager. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'NetSupport Software', 'product': 'Manager', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '14.12.0001', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-34181', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2025-12-15T19:23:52.401770Z'} -
CVE Modified by [email protected]
Dec. 15, 2025
Action Type Old Value New Value Added Reference https://ret2.me/post/2025-12-04-exploiting-netsupport-gateway/ -
New CVE Received by [email protected]
Dec. 15, 2025
Action Type Old Value New Value Added Description NetSupport Manager < 14.12.0001 contains an arbitrary file write vulnerability in its Connectivity Server/Gateway PUTFILE request handler. An attacker with a valid Gateway Key can supply a crafted filename containing directory traversal sequences to write files to arbitrary locations on the server. This can be leveraged to place attacker-controlled DLLs or executables in privileged paths and achieve remote code execution in the context of the NetSupport Manager connectivity service. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-22 Added Reference https://kb.netsupportsoftware.com/knowledge-base/updating-and-securing-netsupport-manager/ Added Reference https://www.vulncheck.com/advisories/netsupport-manager-authenticated-path-traversal-arbitrary-write-rce