CVE-2025-34180

High

Description

NetSupport Manager < 14.12.0001 relies on a shared Gateway Key for authentication between Manager/Control, Client, and Connectivity Server components. The key is stored using a reversible encoding scheme. An attacker who obtains access to a deployed client configuration file can decode the stored value to recover the plaintext Gateway Key. Possession of the Gateway Key allows unauthorized access to NetSupport Manager connectivity services and enables remote control of systems managed through the same key.

SeverityHigh

CVSS8.4

Exploit probability—

ProductManager

PublishedDec 15, 2025

First seenDec 15, 2025

Weakness typeCWE-257CWE-257

How to fix

Update

NetSupport Software Manager14.12.0001 or later

Patches

kb.netsupportsoftware.com/knowledge-base/updating-and-securing-netsupport-manager/

Affected products

Product	Affected versions	Fixed in
NetSupport Software Manager	v < 14.12.0001	14.12.0001

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