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Aptio VOperating system · Ami

CVE-2025-22834

MEDIUM · 5.3 CVSS v3.1 Published 2025-08-12
Fix available
A fix is available. Upgrade to 5.040 or later.
See remediation →
55/100
Remediation priority · Elevated
Zero-click

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 · unedited
AMI APTIOV contains a vulnerability in BIOS where a user may cause “Improper Initialization” by local accessing. Successful exploitation of this vulnerability may leave the resource in an unexpected state and potentially impact confidentiality, integrity, and availability.

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 confidence

AMI APTIOV BIOS firmware contains an improper initialization vulnerability that can be exploited through local access. When exploited, the vulnerability may leave BIOS resources in an inconsistent or unexpected state, potentially allowing an attacker to impact confidentiality, integrity, or availability of the system.

MitigationApply the vendor-supplied BIOS firmware update from AMI to address the improper initialization vulnerability. As this is a BIOS-level issue, the fix requires flashing updated firmware; ensure proper backup and recovery procedures are in place before applying the update.

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
Aptio VOperating system
Affected:>= 5.0, < 5.040

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify BIOS firmware version
    On Windows, run 'wmic bios get smbiosbiosversion' or check System Information (msinfo32). On Linux, run 'dmidecode -s bios-version' or check /sys/class/dmi/id/bios_version. Alternatively, access BIOS setup during boot (typically DEL or F2 key) and locate the BIOS version information.
    Affected if The installed version falls within >= 5.0 and < 5.040 of Ami Aptio V firmware.
  2. Confirm vendor is AMI
    Check the BIOS vendor information. On Windows, run 'wmic bios get manufacturer'. On Linux, run 'dmidecode -s bios-vendor' or check /sys/class/dmi/id/bios_vendor. The vendor should be American Megatrends Inc. (AMI).
    Affected if The BIOS vendor is American Megatrends Inc. and the version is in the affected range.
  3. Verify Aptio V firmware family
    On Windows, run 'wmic bios get smbiosversion' to check the full SMBIOS version string which typically indicates the firmware family. On Linux, run 'dmidecode' and examine the BIOS Information section for 'Aptio' designation.
    Affected if The firmware is identified as Aptio V family and version is < 5.040.
  4. Check if local physical access is possible
    Determine whether an untrusted local user could gain physical access to the system console. This is an attack surface requirement for exploitation.
    Affected if Untrusted local users have physical access to the system and the BIOS version is in the affected range.

A system is affected if it runs AMI Aptio V firmware version 5.0 or higher but below version 5.040, with physical access available to a local attacker.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 5.040 or later
Fixed in 5.040
Interim mitigation

Apply the vendor-supplied BIOS firmware update from AMI to address the improper initialization vulnerability. As this is a BIOS-level issue, the fix requires flashing updated firmware; ensure proper backup and recovery procedures are in place before applying the update.

Recommended fix Moderate confidence

Aptio V version 5.040 or later

  1. Identify the specific motherboard or system model that uses AMI Aptio V BIOS
  2. Contact the system/motherboard vendor (OEM) to obtain the patched BIOS firmware version 5.040 or later
  3. Download the official BIOS update from the vendor's support website
  4. Follow the vendor's documented BIOS update procedure, typically using a USB flash drive or vendor-provided flashing utility
  5. Ensure the system maintains power during the update process to prevent BIOS corruption
Caveat BIOS firmware updates carry inherent risks including potential system damage if interrupted; verify compatibility with your specific hardware platform before applying

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Aptio V Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-22834 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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