CVE-2024-21927 Denial of service in AMD Instinct™ MI300X
Privileged attackers can crash OpenBMC services via manipulated Redfish API commands, causing denial of service on AMD Instinct accelerators.
- 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-2024-21927?
CVE-2024-21927 is a medium-severity denial of service vulnerability in AMD Instinct™ MI300X, published on 23 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper input validation in Satellite Management Controller (SMC) may allow an attacker with privileges to use certain special characters in manipulated Redfish® API commands, causing service processes like OpenBMC to crash and reset, potentially resulting in denial of service.
Weakness: CWE-241
Which versions are affected by CVE-2024-21927?
How do I fix CVE-2024-21927?
No fix has been published for CVE-2024-21927 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-21927 being exploited?
There is no known exploitation of CVE-2024-21927 in the wild and no public exploit code.
Sources
Also known as GHSA-x6w7-m2cm-96c3.