CVE-2021-26346 Integer overflow in Ryzen 5000 Series
An integer overflow in the AMD Secure Processor bootloader allows attackers to cause a denial of service via SPI flash manipulation.
- 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-2021-26346?
CVE-2021-26346 is a medium-severity vulnerability in Ryzen 5000 Series, 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
Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service.
Weakness: CWE-190
Which versions are affected by CVE-2021-26346?
It affects 104 products.
Products include Amd Ryzen 3 3100 Firmware, Amd Ryzen 3 3200g Firmware, Amd Ryzen 3 3200u Firmware, Amd Ryzen 3 3250c Firmware, Amd Ryzen 3 3250u Firmware, Amd Ryzen 3 3300g Firmware and 98 more.
How do I fix CVE-2021-26346?
No fix has been published for CVE-2021-26346 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-26346 being exploited?
There is no known exploitation of CVE-2021-26346 in the wild and no public exploit code.
Other vulnerabilities in Ryzen 5000 Series
Sources
Also known as GHSA-pj35-9jc4-v6rm.