CVE-2021-46747 Privilege escalation in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics
An attacker with an untrusted user space application can map sensitive SMN apertures to escalate privileges on affected AMD processors and graphics cards.
- 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-2021-46747?
CVE-2021-46747 is a high-severity vulnerability in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics, published on 1 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Insufficient granularity of access control in ASP (AMD Secure Processor) may allow an attacker with an untrusted user space application to map sensitive SMN (System Management Network) apertures leading to a potential escalation of privileges.
Weakness: CWE-1220
Which versions are affected by CVE-2021-46747?
How do I fix CVE-2021-46747?
No fix has been published for CVE-2021-46747 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-46747 being exploited?
There is no known exploitation of CVE-2021-46747 in the wild and no public exploit code.
Sources
Also known as GHSA-59gr-g8qh-wf7f.