CVE-2022-29974Public exploitNetwork attack vector

Firmware memory corruption via oversized update sequence array

Published Dec 9, 2024 · Updated Dec 12, 2024

Buffer overflow in AMI NTFS driver 1.0.0 allows attackers to corrupt firmware memory via a crafted NTFS filesystem image. The update-sequence restoration routine accepts more array entries than the allocated index buffer can hold and writes two attacker-chosen bytes past its end. Triggering requires the firmware driver to process the malformed image; the demonstrated primitive replaces two known nonzero bytes at a chosen out-of-bounds offset.

CVSS severity4.3
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in AMI NTFS driver 1.0.0 allows attackers to corrupt firmware memory via a crafted NTFS filesystem image. The update-sequence restoration routine accepts more array entries than the allocated index buffer can hold and writes two attacker-chosen bytes past its end. Triggering requires the firmware driver to process the malformed image; the demonstrated primitive replaces two known nonzero bytes at a chosen out-of-bounds offset.

The record

CVE
CVE-2022-29974
Published
Dec 9, 2024
Updated
Dec 12, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 12, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

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.

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No observations available

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

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1203Exploitation for Client Execution

Public exploit references

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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