CVE-2024-42444

Local code execution via DMA-SMM race

Published Jan 14, 2025 · Updated Jan 14, 2025

TOCTOU race in the Computrace module of AMI Aptio V BKS_5.0 through BKS_5.38 allows local users to execute arbitrary code. AMI identifies a race between DMA and SMM but has not disclosed the checked object, competing write, or affected firmware routine. Affected systems must use the Computrace module; exploitation also requires low privileges, high-complexity timing, and user interaction.

CVSS severity7.5
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

TOCTOU race in the Computrace module of AMI Aptio V BKS_5.0 through BKS_5.38 allows local users to execute arbitrary code. AMI identifies a race between DMA and SMM but has not disclosed the checked object, competing write, or affected firmware routine. Affected systems must use the Computrace module; exploitation also requires low privileges, high-complexity timing, and user interaction.

The record

CVE
CVE-2024-42444
Published
Jan 14, 2025
Updated
Jan 14, 2025
Vendor
American Megatrends International
Product
Aptio V
Classifications
CWE-367, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=BKS_5.0 <=BKS_5.38

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

American Megatrends International · Aptio Vversion=BKS_5.0 <=BKS_5.38

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
7.5AMICVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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