CVE-2025-71286

Local service interruption via undersized control allocation

Published May 6, 2026 · Updated May 6, 2026

Memory corruption in affected Linux Kernel releases allows local users to interrupt service through crafted SOF IPC4 topology data. The bytes-control path allocates scontrol->ipc_control_data for the ABI header and payload but omits space for struct sof_ipc4_control_data. Reachability requires local access and a platform using SOF IPC4 bytes controls; successful triggering corrupts kernel memory and can crash the system.

CVSS severity7.8
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in affected Linux Kernel releases allows local users to interrupt service through crafted SOF IPC4 topology data. The bytes-control path allocates scontrol->ipc_control_data for the ABI header and payload but omits space for struct sof_ipc4_control_data. Reachability requires local access and a platform using SOF IPC4 bytes controls; successful triggering corrupts kernel memory and can crash the system.

The record

CVE
CVE-2025-71286
Published
May 6, 2026
Updated
May 6, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 6, 2026CVE publishedPublication date reported by the CVE source.
  2. May 6, 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=6.4
  2. Affected versionversion=a382082ff74b036944cbc5b6ad29b65f633acd3a <1237cd9ff198cb882402572f29569e5247190974
  3. Affected versionversion=a382082ff74b036944cbc5b6ad29b65f633acd3a <491956b45b5f4933632ea6d8a8bdfdf045ab81e1
  4. Affected versionversion=a382082ff74b036944cbc5b6ad29b65f633acd3a <59fe643f21b9d59bcbedb0dfbf988ee455c23736
  5. Affected versionversion=a382082ff74b036944cbc5b6ad29b65f633acd3a <a653820700b81c9e6f05ac23b7969ecec1a18e85
  6. Affected versionversion=a382082ff74b036944cbc5b6ad29b65f633acd3a <a704a1a4394b5877b9adc31b2c3165ad0b541896

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.4; version=a382082ff74b036944cbc5b6ad29b65f633acd3a <1237cd9ff198cb882402572f29569e5247190974; version=a382082ff74b036944cbc5b6ad29b65f633acd3a <491956b45b5f4933632ea6d8a8bdfdf045ab81e1; version=a382082ff74b036944cbc5b6ad29b65f633acd3a <59fe643f21b9d59bcbedb0dfbf988ee455c23736; version=a382082ff74b036944cbc5b6ad29b65f633acd3a <a653820700b81c9e6f05ac23b7969ecec1a18e85; version=a382082ff74b036944cbc5b6ad29b65f633acd3a <a704a1a4394b5877b9adc31b2c3165ad0b541896

Published CVSS scores

7.8kernel.orgCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

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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