CVE-2024-42442
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAPTIOV 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceAPTIOV firmware contains a buffer handling vulnerability in the BIOS that allows improper memory operations. The flaw is network-exploitable and enables code execution outside the intended System Management Mode (SMM) boundaries, bypassing SMM isolation protections.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data>= 5.0, < 5.037CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the BIOS vendor and productUse system information tools (e.g., dmidecode -s bios-vendor and dmidecode -s bios-version on Linux, or wmic bios on Windows) to determine the BIOS vendor and product name. Look for 'American Megatrends' as vendor and 'Aptio' in the product name.Affected if The system is running American Megatrends Aptio V BIOS (not other AMI products or other BIOS vendors).
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Determine the installed BIOS versionExtract the BIOS firmware version string using the same tools (dmidecode or wmic). The version typically appears as a numeric string like 5.xx.xx.Affected if The reported BIOS version falls within the range >= 5.0 and < 5.037 (e.g., 5.030, 5.036 would be affected; 5.037 and above would not).
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Check for network-exposable management interfacesIdentify if the system has BMC, IPMI, iLO, iDRAC, or similar out-of-band management hardware/software enabled. Check if network access to these interfaces is possible (review BMC IP settings and firewall rules).Affected if The system has an active network-accessible management interface (BMC/IPMI) that could allow remote exploitation of the BIOS vulnerability.
The system is affected if it runs Ami Aptio V BIOS version 5.0 through 5.036 and has network-accessible management interfaces that could expose the vulnerability.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped5.037
Apply vendor-provided BIOS/UEFI firmware updates from American Megatrends or the affected motherboard OEM to patch the memory handling flaw in System Management Mode.
Aptio V version 5.037 or later
- Identify your system manufacturer (OEM) that uses American Megatrends Aptio V firmware
- Contact your OEM or system vendor to obtain the updated Aptio V BIOS/firmware version 5.037 or later
- Follow the vendor's standard BIOS/firmware update procedure, typically involving: a) Download the firmware update utility from the vendor, b) Run the update utility or boot from a USB with the firmware, c) Ensure stable power during the update process
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-42442 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-42442 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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