CVE-2023-25756 Memory corruption in Intel(R) Processors

Medium 4.6 Published 14 Nov 2023 Updated 13 Feb 2025

An authenticated attacker with adjacent access can exploit an out-of-bounds read in Intel 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-2023-25756?

CVE-2023-25756 is a medium-severity memory corruption vulnerability in Intel(R) Processors, published on 14 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Out-of-bounds read in the BIOS firmware for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege via adjacent access.

Weakness: CWE-125

Which versions are affected by CVE-2023-25756?

It affects 629 products.

Products include Intel Atom X6200fe Firmware, Intel Atom X6211e Firmware, Intel Atom X6212re Firmware, Intel Atom X6413e Firmware, Intel Atom X6414re Firmware, Intel Atom X6425e Firmware and 623 more.

How do I fix CVE-2023-25756?

No fix has been published for CVE-2023-25756 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-2023-25756 being exploited?

There is no known exploitation of CVE-2023-25756 in the wild and no public exploit code.

Sources

Also known as GHSA-pgg7-g5f4-6c8v.