CVE-2026-47561 Memory corruption in GeForce
Unvalidated ioctl buffer size in NVIDIA Linux GPU driver allows unprivileged users to trigger out-of-bounds kernel writes, leading to code execution and privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-47561?
CVE-2026-47561 is a high-severity memory corruption vulnerability in NVIDIA GeForce, published on 30 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer where the size of an ioctl input buffer is not validated, allowing an unprivileged caller to trigger an out-of-bounds write in kernel memory. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.
Weakness: CWE-787
Which versions are affected by CVE-2026-47561?
How do I fix CVE-2026-47561?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-47561 being exploited?
There is no known exploitation of CVE-2026-47561 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-47561, GHSA-r37f-4h3r-rmc8, UBUNTU-CVE-2026-47561.