CVE-2025-38133

Kernel memory corruption via channel pointer overrun

Published Jul 3, 2025 · Updated Aug 5, 2026

Out-of-bounds write in the Linux kernel 6.15 IIO AD4858 channel parser allows local users to corrupt kernel memory during device setup. The ad4858_parse_channels function advances a channel pointer already advanced by ad4851_parse_channels_common, then stores the resulting past-the-end pointer in indio_dev->channels. Reachability requires an AD4858 device to exercise the affected driver; corruption can crash the kernel or alter kernel memory.

CVSS severity7.8
High
EPSS probability0.16%
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 write in the Linux kernel 6.15 IIO AD4858 channel parser allows local users to corrupt kernel memory during device setup. The ad4858_parse_channels function advances a channel pointer already advanced by ad4851_parse_channels_common, then stores the resulting past-the-end pointer in indio_dev->channels. Reachability requires an AD4858 device to exercise the affected driver; corruption can crash the kernel or alter kernel memory.

The record

CVE
CVE-2025-38133
Published
Jul 3, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=6.15
  2. Affected versionversion=6250803fe2ec92be32a4df1c3a39c4a460d5bd58 <499a8cee812588905cc940837e69918c1649a19e
  3. Affected versionversion=6250803fe2ec92be32a4df1c3a39c4a460d5bd58 <6c3b9e1167d072ce2d01cafec7866647cf8d3616

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.15; version=6250803fe2ec92be32a4df1c3a39c4a460d5bd58 <499a8cee812588905cc940837e69918c1649a19e; version=6250803fe2ec92be32a4df1c3a39c4a460d5bd58 <6c3b9e1167d072ce2d01cafec7866647cf8d3616

Published CVSS scores

7.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1068Exploitation for Privilege Escalation

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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