CVE-2024-33657
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 · uneditedThis SMM vulnerability affects certain modules, allowing privileged attackers to execute arbitrary code, manipulate stack memory, and leak information from SMRAM to kernel space, potentially leading to denial-of-service attacks.
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 confidenceThis is a System Management Mode (SMM) vulnerability affecting certain firmware modules. SMM is a highest-privilege CPU mode that operates below the OS. The flaw allows privileged attackers to execute arbitrary code, manipulate stack memory in SMM, and leak sensitive information from SMRAM (System Management RAM) to kernel space, potentially causing denial-of-service.
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, <= 5.36CVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/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 firmware vendorRun 'dmidecode -s bios-vendor' or check system BIOS information to determine if the firmware is Ami Aptio VAffected if The firmware vendor is not Ami or the firmware is not Ami Aptio V (not affected)
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Check firmware versionRun 'dmidecode -s bios-version' to obtain the installed Ami Aptio V version numberAffected if Unable to retrieve version (cannot determine)
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Compare version against affected rangeCompare the installed version to the affected range: versions greater than or equal to 5.0 AND less than or equal to 5.36 are within the vulnerable rangeAffected if Version is >= 5.0 and <= 5.36 (the system is affected)
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Verify SMM is presentConfirm the system supports SMM by checking CPU capabilities or firmware features via 'dmidecode -t processor' or checking for SMRAM configurationAffected if SMM is not present or disabled (vulnerability may not be exploitable)
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Check for OEM updatesConsult the system or motherboard OEM website for available BIOS/firmware updates for this platformAffected if No update available from OEM (cannot remediate via OS-level patches)
The system is affected only if it runs Ami Aptio V firmware with version >= 5.0 and <= 5.36 and has SMM enabled.
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.
From vendor dataApply vendor-supplied firmware updates for affected modules. SMM vulnerabilities require BIOS/firmware updates from the OEM or Independent BIOS Vendor (IBV); operating system patches cannot remediate SMM flaws.
- Consultation4.0 h
- Implementation2.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,928.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-33657 — 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-2024-33657 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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