Netskope Client and Endpoint DLP
CVE-2025-0309: Netskope Client Local Elevation of Privileges
An insufficient validation on the server connection endpoint in Netskope Client allows local users to elevate privileges on the system.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Netskope Client 0 | 129.0.0 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
An insufficient validation on the server connection endpoint in Netskope Client allows local users to elevate privileges on the system. The insufficient validation allows Netskope Client to connect to any other server with Public Signed CA TLS certificates and send specially crafted responses to elevate privileges.
Workarounds
There are multiple configurations which can mitigate and reduce potential exposure: * Block connection/access to any new domain or URLs to NS Client apart from goskope.com * Use EDR tools to monitor connections from NS Client to any random domains and block it
*
Monitor for addition of any self signed certificates in operating system certificate store
- Monitor the status of NS Client
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.