CVE-2023-5912 Memory corruption in Notebook BIOS
A local attacker with elevated privileges can exploit a memory leakage vulnerability in Lenovo Notebook BIOS to write to NVRAM variables.
- 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-2023-5912?
CVE-2023-5912 is a medium-severity memory corruption vulnerability in Lenovo Notebook BIOS, published on 5 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A potential memory leakage vulnerability was reported in some Lenovo Notebook products that may allow a local attacker with elevated privileges to write to NVRAM variables.
Weakness: CWE-787
Which versions are affected by CVE-2023-5912?
How do I fix CVE-2023-5912?
No fix has been published for CVE-2023-5912 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-2023-5912 being exploited?
There is no known exploitation of CVE-2023-5912 in the wild and no public exploit code.
Sources
Also known as GHSA-3w26-vfvh-2v33.