CVE-2026-43598 Memory corruption in AMD Instinct™ MI210
A compromised peer or network attacker can trigger remote code execution via improper input validation in the AMD RCCL library.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-43598?
CVE-2026-43598 is a high-severity memory corruption vulnerability in AMD Instinct™ MI210, published on 6 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper input validation in the AMD ROCm Communication Collectives Library (RCCL) could allow a compromised peer rank or network-adjacent attacker to dereference an attacker-controlled pointer, potentially resulting in remote code execution.
Weakness: CWE-822
Which versions are affected by CVE-2026-43598?
How do I fix CVE-2026-43598?
No fix has been published for CVE-2026-43598 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-43598 being exploited?
There is no known exploitation of CVE-2026-43598 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-43598, GHSA-h97m-6c64-h5x2, UBUNTU-CVE-2026-43598.