CVE-2021-26400 Information disclosure in AMD Processors
AMD processors may leak stale data from shared memory due to speculative re-ordering, allowing attackers to read sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-26400?
CVE-2021-26400 is a medium-severity vulnerability in AMD Processors, published on 11 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
AMD processors may speculatively re-order load instructions which can result in stale data being observed when multiple processors are operating on shared memory, resulting in potential data leakage.
Which versions are affected by CVE-2021-26400?
It affects 1 product.
Products include Amd Cpu.
How do I fix CVE-2021-26400?
No fix has been published for CVE-2021-26400 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-26400 being exploited?
There is no known exploitation of CVE-2021-26400 in the wild and no public exploit code.
Sources
Also known as GHSA-p6cf-jjrc-ff28.