CVE-2026-47503 Memory corruption in Virtual GPU Manager
A guest VM user can trigger an out-of-bounds write in the NVIDIA vGPU plugin via crafted RPC messages, 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-2026-47503?
CVE-2026-47503 is a high-severity memory corruption vulnerability in NVIDIA Virtual GPU Manager, 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 Virtual GPU Manager (vGPU plugin), where a guest VM user may cause an out-of-bounds write by sending a crafted RPC message with invalid performance state list size parameters. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, denial of service, and information disclosure.
Weakness: CWE-787
Which versions are affected by CVE-2026-47503?
How do I fix CVE-2026-47503?
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-2026-47503 being exploited?
There is no known exploitation of CVE-2026-47503 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-47503, GHSA-33rr-wch2-jq8g, UBUNTU-CVE-2026-47503.