CVE-2025-10451
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 · uneditedUnchecked output buffer may allowed arbitrary code execution in SMM and potentially result in SMM memory corruption.
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 vulnerability involves an unchecked output buffer in System Management Mode (SMM) firmware that can be exploited to achieve arbitrary code execution with the highest privileges on the system. The unchecked buffer allows an attacker to overflow and corrupt SMM memory, potentially bypassing hardware security boundaries.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- High
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/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.
-
Verify SMM is enabled on the systemRun 'sudo dmidecode -t system' and look for SMM-related entries, or use 'sudo dmidecode -t bios' to check BIOS settings. On Windows, use 'wmic bios get smbiosbiosversion' or check UEFI settings directly via reboot.Affected if SMM is enabled and the firmware version falls within any unpatched range for this vulnerability.
-
Obtain the current BIOS/UEFI firmware versionRun 'sudo dmidecode -s bios-version' on Linux, or 'wmic bios get smbiosbiosversion' on Windows. Record the exact version string as reported by the system.Affected if The installed firmware version has not been patched by the vendor to address the SMM buffer handling flaw.
-
Identify the system vendor and modelRun 'sudo dmidecode -s system-manufacturer' and 'sudo dmidecode -s system-product-name' to determine the hardware vendor and model.Affected if The system uses a BIOS/UEFI implementation with the vulnerable SMM buffer handling code and the vendor has not released a patched firmware.
-
Check for SMM communication software or agentsReview installed software for SMM-related tools such as Intel Management Engine (ME) tools, vendor-specific SMM utilities, or chipsec. Check if any custom SMM handlers or SMM-based agents are installed.Affected if Custom SMM handlers or agents that utilize the vulnerable output buffer are present on the system.
-
Verify SMM isolation and lock statusCheck UEFI/BIOS for SMM configuration locks. On Linux, tools like 'chmod +s /dev/mem' or examining /dev/mem accessibility can indicate SMM exposure. Verify if SMM is locked down in the firmware.Affected if SMM is not locked or protected, allowing potential access to the vulnerable SMM interface.
A system is affected if SMM is enabled and the installed BIOS/UEFI firmware version has not been patched by the vendor to address the CVE-2025-10451 SMM buffer handling 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.
From vendor dataApply vendor-supplied BIOS/UEFI firmware updates that address this SMM vulnerability. Verify that SMM is configured with appropriate restrictions and that systems are running the latest vendor firmware.
- 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-2025-10451 — 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-2025-10451 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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
- No spam, self-promotion, credentials, or personal data