CVE-2026-0427 Information disclosure in AMD Instinct™ MI210
An admin-privileged attacker in a guest VM can access shared GPU resources from another VM, compromising confidentiality, integrity, and availability.
- 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-2026-0427?
CVE-2026-0427 is a medium-severity vulnerability in AMD Instinct™ MI210, published on 15 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper cleanup of shared register resources in GPU firmware could allow an admin-privileged attacker from a Guest Virtual machine (VM) to access these shared resources from another Guest VM, potentially resulting in the loss of confidentiality, integrity, or availability.
Weakness: CWE-459
Which versions are affected by CVE-2026-0427?
How do I fix CVE-2026-0427?
No fix has been published for CVE-2026-0427 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-0427 being exploited?
There is no known exploitation of CVE-2026-0427 in the wild and no public exploit code.
Sources
Also known as GHSA-j384-fpqm-4mmh.