CVE-2021-26407 Weak cryptography in 2nd Gen EPYC
Weak random IV generation in AMD EPYC firmware may cause collisions, leading to potential information disclosure.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-26407?
CVE-2021-26407 is a medium-severity vulnerability in 2nd Gen EPYC, published on 10 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key potentially resulting in information disclosure.
Weakness: CWE-330
Which versions are affected by CVE-2021-26407?
It affects 1 product.
Products include Amd Romepi Firmware.
How do I fix CVE-2021-26407?
No fix has been published for CVE-2021-26407 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-26407 being exploited?
There is no known exploitation of CVE-2021-26407 in the wild and no public exploit code.
Sources
Also known as GHSA-wvcg-5hx9-98xw.