CVE-2024-42444 TOCTOU Race Condition between DMA and SMM
A local attacker can exploit a TOCTOU race condition in AMI AptioV BIOS to execute arbitrary code on the target device.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2024-42444?
CVE-2024-42444 is a high-severity vulnerability in AMI AptioV, published on 14 Jan 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
APTIOV contains a vulnerability in BIOS where an attacker may cause a TOCTOU Race Condition by local means. Successful exploitation of this vulnerability may lead to execution of arbitrary code on the target device.
Weakness: CWE-367
Which versions are affected by CVE-2024-42444?
It affects 1 product.
Products include Ami Aptio V.
How do I fix CVE-2024-42444?
No fix has been published for CVE-2024-42444 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-42444 being exploited?
There is no known exploitation of CVE-2024-42444 in the wild and no public exploit code.
Other vulnerabilities in AMI AptioV
- CVE-2022-40250 Stack overflow vulnerability in SMI handler on SmmSmbiosElog.
- CVE-2025-33045 Legacy Serial Redirection SMRAM Vulnerabilities
- CVE-2022-26873 Memory corruption in Aptio
- CVE-2022-40261 SMM memory corruption vulnerability in OverClockSmiHandler SMM driver
- CVE-2022-40262 The arbitrary write vulnerability in S3Resume2Pei leads to arbitrary code execution during PEI phase.
Sources
Also known as GHSA-45gf-27xm-h64q.