CVE-2021-33122 Privilege escalation in Intel(R) Processors
A privileged local attacker can exploit insufficient control flow management in Intel Processor BIOS firmware to escalate privileges.
- 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-2021-33122?
CVE-2021-33122 is a high-severity vulnerability in Intel(R) Processors, published on 12 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Insufficient control flow management in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable aescalation of privilege via local access.
Which versions are affected by CVE-2021-33122?
It affects 233 products.
Products include Intel Celeron N4000 Firmware, Intel Celeron N4020 Firmware, Intel Celeron N4100 Firmware, Intel Celeron N4120 Firmware, Intel Celeron N4500 Firmware, Intel Celeron N4505 Firmware and 227 more.
How do I fix CVE-2021-33122?
No fix has been published for CVE-2021-33122 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-33122 being exploited?
There is no known exploitation of CVE-2021-33122 in the wild and no public exploit code.
Sources
Also known as GHSA-xj72-m52w-529q.