CVE-2021-46762 Denial of service in 2nd Gen AMD EPYC™
Insufficient input validation in AMD EPYC SMU allows attackers to corrupt SRAM, causing integrity loss or denial of service.
- 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-2021-46762?
CVE-2021-46762 is a low-severity denial of service vulnerability in Amd Epyc 7232p Firmware, published on 9 May 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Insufficient input validation in the SMU may allow an attacker to corrupt SMU SRAM potentially leading to a loss of integrity or denial of service.
Weakness: CWE-20
Which versions are affected by CVE-2021-46762?
It affects 48 products.
Products include Amd Epyc 7232p Firmware, Amd Epyc 7252 Firmware, Amd Epyc 7262 Firmware, Amd Epyc 7272 Firmware, Amd Epyc 7282 Firmware, Amd Epyc 72f3 Firmware and 42 more.
How do I fix CVE-2021-46762?
No fix has been published for CVE-2021-46762 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-2021-46762 being exploited?
There is no known exploitation of CVE-2021-46762 in the wild and no public exploit code.
Other vulnerabilities in Amd Epyc 7232p Firmware
Sources
Also known as GHSA-65xx-vwx2-w8qf.