CVE-2022-31226 Memory corruption in CPG BIOS
A local authenticated attacker can exploit a stack-based buffer overflow in Dell BIOS to achieve arbitrary code execution and privilege escalation.
- 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-2022-31226?
CVE-2022-31226 is a high-severity memory corruption vulnerability in Dell CPG BIOS, published on 12 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Dell BIOS versions contain a Stack-based Buffer Overflow vulnerability. A local authenticated malicious user could potentially exploit this vulnerability by sending excess data to a function in order to gain arbitrary code execution on the system.
Which versions are affected by CVE-2022-31226?
It affects 25 products.
Products include Dell Chengming 3900 Firmware, Dell Inspiron 14 Plus 7420 Firmware, Dell Inspiron 16 Plus 7620 Firmware, Dell Inspiron 3910 Firmware, Dell Inspiron 5320 Firmware, Dell Inspiron 5420 Firmware and 19 more.
How do I fix CVE-2022-31226?
No fix has been published for CVE-2022-31226 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-31226 being exploited?
There is no known exploitation of CVE-2022-31226 in the wild and no public exploit code.
Other vulnerabilities in Dell CPG BIOS
Sources
Also known as GHSA-93xc-8f45-qxx3.