CVE-2024-42442 Runtime Service Access outside SMRAM
An attacker can execute code outside System Management Mode via improper memory buffer restrictions in AMI AptioV BIOS firmware.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-42442?
CVE-2024-42442 is a high-severity memory corruption vulnerability in AMI AptioV, published on 12 Nov 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
APTIOV contains a vulnerability in the BIOS where a user or attacker may cause an improper restriction of operations within the bounds of a memory buffer over the network. A successful exploitation of this vulnerability may lead to code execution outside of the intended System Management Mode.
Weakness: CWE-119
Which versions are affected by CVE-2024-42442?
It affects 1 product.
Products include Ami Aptio V.
How do I fix CVE-2024-42442?
No fix has been published for CVE-2024-42442 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-2024-42442 being exploited?
There is no known exploitation of CVE-2024-42442 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-jjfc-8563-3h89.