CVE-2026-97456Public exploitHinoki check available

Memory over-read via unchecked AML parser pointer

Published Sep 24, 2026 · Updated Sep 24, 2026

An out-of-bounds read in the Linux ACPICA parser before 6.12.111 or 6.18.53 allows attackers to read beyond an AML buffer. The acpi_ps_parse_loop() error path dereferences walk_state->aml while checking for AML_ELSE_OP without first ensuring that the pointer remains below parser_state->aml_end. Reaching the read requires malformed AML that fails parsing at the end of an If or While block; no kernel-level data disclosure or service interruption has been demonstrated.

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 the Linux ACPICA parser before 6.12.111 or 6.18.53 allows attackers to read beyond an AML buffer. The acpi_ps_parse_loop() error path dereferences walk_state->aml while checking for AML_ELSE_OP without first ensuring that the pointer remains below parser_state->aml_end. Reaching the read requires malformed AML that fails parsing at the end of an If or While block; no kernel-level data disclosure or service interruption has been demonstrated.

The record

CVE
CVE-2026-97456
Published
Sep 24, 2026
Updated
Sep 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

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 <5d16f40b019e59df81deb594ed4eafefc8e43cc0
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8de27e2d83c0d07ae9443c6304575b0609394bfd
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a477c6ef5335d2d0613ff7c1779a8209f16627c5

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=0 <6.12.111; version=0 <6.18.53; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5d16f40b019e59df81deb594ed4eafefc8e43cc0; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8de27e2d83c0d07ae9443c6304575b0609394bfd; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a477c6ef5335d2d0613ff7c1779a8209f16627c5

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)
VectorUnavailable
PrivilegesUnavailable
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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