CVE-2023-53788

Unspecified impact via out-of-bounds tuning array access

Published Dec 9, 2025 · Updated May 11, 2026

Out-of-bounds access in the Linux kernel ALSA CA0132 driver allows attackers to cause unspecified impact via unspecified vectors. When tuning_ctl_set finds no matching nid, the loop leaves its index equal to TUNING_CTLS_COUNT but still reads ca0132_tuning_ctls[i].mid for dspio_set_param. Reachability requires an unmatched CA0132 tuning control identifier; the Linux kernel CVE record does not publish the resulting runtime consequence.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in the Linux kernel ALSA CA0132 driver allows attackers to cause unspecified impact via unspecified vectors. When tuning_ctl_set finds no matching nid, the loop leaves its index equal to TUNING_CTLS_COUNT but still reads ca0132_tuning_ctls[i].mid for dspio_set_param. Reachability requires an unmatched CA0132 tuning control identifier; the Linux kernel CVE record does not publish the resulting runtime consequence.

The record

CVE
CVE-2023-53788
Published
Dec 9, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 9, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=3.9
  2. Affected versionversion=44f0c9782cc6ab71ea947f8f710a46f2078a151c <32854bc91ae7debcdefdc7ae881ed83385a04792
  3. Affected versionversion=44f0c9782cc6ab71ea947f8f710a46f2078a151c <3590498117a11aa1f92a97e8a04d95320e347ebd
  4. Affected versionversion=44f0c9782cc6ab71ea947f8f710a46f2078a151c <734a3deb6614e3597e7e9ef7fb6006c593c5ee18
  5. Affected versionversion=44f0c9782cc6ab71ea947f8f710a46f2078a151c <7f12f99b8017ad5ed5aff4b0aefe3bb7bbdf8a99
  6. Affected versionversion=44f0c9782cc6ab71ea947f8f710a46f2078a151c <98e5eb110095ec77cb6d775051d181edbf9cd3cf
  7. Affected versionversion=44f0c9782cc6ab71ea947f8f710a46f2078a151c <baef27176ea5fdc7ad0947e2dc7733855e35db71
  8. Affected versionversion=44f0c9782cc6ab71ea947f8f710a46f2078a151c <d23f65f08247068576a01e28b297e995b7dc3965
  9. Affected versionversion=44f0c9782cc6ab71ea947f8f710a46f2078a151c <ff5e8b49348f6a550c136b74efaf8b3c1d3ceaea

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=3.9; version=44f0c9782cc6ab71ea947f8f710a46f2078a151c <32854bc91ae7debcdefdc7ae881ed83385a04792; version=44f0c9782cc6ab71ea947f8f710a46f2078a151c <3590498117a11aa1f92a97e8a04d95320e347ebd; version=44f0c9782cc6ab71ea947f8f710a46f2078a151c <734a3deb6614e3597e7e9ef7fb6006c593c5ee18; version=44f0c9782cc6ab71ea947f8f710a46f2078a151c <7f12f99b8017ad5ed5aff4b0aefe3bb7bbdf8a99; version=44f0c9782cc6ab71ea947f8f710a46f2078a151c <98e5eb110095ec77cb6d775051d181edbf9cd3cf; version=44f0c9782cc6ab71ea947f8f710a46f2078a151c <baef27176ea5fdc7ad0947e2dc7733855e35db71; version=44f0c9782cc6ab71ea947f8f710a46f2078a151c <d23f65f08247068576a01e28b297e995b7dc3965; version=44f0c9782cc6ab71ea947f8f710a46f2078a151c <ff5e8b49348f6a550c136b74efaf8b3c1d3ceaea

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

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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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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