CVE-2025-15641 Netskope Client Exposed IOCTL with Insufficient Access Controls
A malicious insider with admin privileges can bypass anti-tampering protections in Netskope Client via crafted IOCTL requests.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-15641?
CVE-2025-15641 is a medium-severity vulnerability in Netskope Client, published on 17 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Netskope was notified about a potential gap in its Netskope Client for Windows systems where a malicious insider with administrative privileges can potentially tamper with the customer IOCTL by sending crafted IOCTL requests to the driver. A successful exploit can result in the bypassing of all anti-tampering protections for the NSClient.Affected Product(s) and Version(s) * Product Name: Netskope Client * Affected Platform: Windows * Affected Version: All version below R138
Weakness: CWE-782
Which versions are affected by CVE-2025-15641?
How do I fix CVE-2025-15641?
No fix has been published for CVE-2025-15641 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-15641 being exploited?
There is no known exploitation of CVE-2025-15641 in the wild and no public exploit code.
Sources
Also known as GHSA-jv52-q48w-cm7j.