CVE-2026-97447Public exploitHinoki check available

Heap over-read via undersized ACPI identifiers

Published Sep 24, 2026 · Updated Sep 24, 2026

An out-of-bounds read in Linux 6.12 before 6.12.111 and 6.18 before 6.18.53 allows local users to trigger a heap over-read via malformed AML. The acpi_ex_load_table_op() path passes undersized OEM ID or Table ID strings to acpi_tb_find_table(), which copies fixed 6-byte and 8-byte fields beyond their allocations. Reaching the kernel path requires root-level dynamic ACPI table loading or malicious system firmware, limiting exposure to privileged local or pre-boot inputs.

CVSS severityUnavailable
Unscored
EPSS probability0.17%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

An out-of-bounds read in Linux 6.12 before 6.12.111 and 6.18 before 6.18.53 allows local users to trigger a heap over-read via malformed AML. The acpi_ex_load_table_op() path passes undersized OEM ID or Table ID strings to acpi_tb_find_table(), which copies fixed 6-byte and 8-byte fields beyond their allocations. Reaching the kernel path requires root-level dynamic ACPI table loading or malicious system firmware, limiting exposure to privileged local or pre-boot inputs.

The record

CVE
CVE-2026-97447
Published
Sep 24, 2026
Updated
Sep 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2026Record 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=0 <6.12.111
  2. Affected versionversion=0 <6.18.53
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <485829e6999b7909f50761a1c708660304edc945
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d15c574022e0944f651759f567a9eef61e7b93ca
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e9a717b21caba155abe9d0c2102fe497536126b5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=0 <6.12.111; version=0 <6.18.53; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <485829e6999b7909f50761a1c708660304edc945; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d15c574022e0944f651759f567a9eef61e7b93ca; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e9a717b21caba155abe9d0c2102fe497536126b5

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

No sourced classifications are available.

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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