CVE-2025-10238 Memory corruption in E14 Gen 4 (type 21E3, 21E4) Laptops (ThinkPad) BIOS
A privileged local user can execute code in System Management Mode via an out-of-bounds write in Lenovo ThinkPad BIOS.
- 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-2025-10238?
CVE-2025-10238 is a high-severity memory corruption vulnerability in Lenovo E14 Gen 4 (type 21E3, 21E4) Laptops (ThinkPad) BIOS, published on 10 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
During an internal security assessment, a potential out-of-bounds write vulnerability was discovered in the BIOS of some ThinkPad products could allow a privileged local user to execute code in System Management Mode (SMM).
Weakness: CWE-787
Which versions are affected by CVE-2025-10238?
How do I fix CVE-2025-10238?
No fix has been published for CVE-2025-10238 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-2025-10238 being exploited?
There is no known exploitation of CVE-2025-10238 in the wild and no public exploit code.
Sources
Also known as GHSA-p7jf-pwjp-h977.