CVE-2025-38081

Data exposure or service interruption via chip-select indexing

Published Jun 18, 2025 · Updated May 11, 2026

Out-of-bounds register access in the Linux spi-rockchip driver allows local users to read protected data or interrupt the system. The rockchip_spi_config() function uses a GPIO-backed chip-select number as a native register-field bit index when SPI_CS_HIGH is set, so a high GPIO number selects bits outside the native chip-select field. Reachability requires Rockchip SPI hardware configured with an active-high GPIO chip select; published assessments disagree on whether register corruption also permits integrity impact.

CVSS severity7.1
High
EPSS probability0.17%
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 register access in the Linux spi-rockchip driver allows local users to read protected data or interrupt the system. The rockchip_spi_config() function uses a GPIO-backed chip-select number as a native register-field bit index when SPI_CS_HIGH is set, so a high GPIO number selects bits outside the native chip-select field. Reachability requires Rockchip SPI hardware configured with an active-high GPIO chip select; published assessments disagree on whether register corruption also permits integrity impact.

The record

CVE
CVE-2025-38081
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 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=5.14
  2. Affected versionversion=736b81e075172f1e6cd7a8bc1a1374a2dee9e4dc <254e04ec799c1ff8c1e2bd08a57c6a849895d6ff
  3. Affected versionversion=736b81e075172f1e6cd7a8bc1a1374a2dee9e4dc <4a120221661fcecb253448d7b041a52d47f1d91f
  4. Affected versionversion=736b81e075172f1e6cd7a8bc1a1374a2dee9e4dc <7a874e8b54ea21094f7fd2d428b164394c6cb316
  5. Affected versionversion=736b81e075172f1e6cd7a8bc1a1374a2dee9e4dc <ace57bd1fb49d193edec5f6a1f255f48dd5fca90

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.14; version=736b81e075172f1e6cd7a8bc1a1374a2dee9e4dc <254e04ec799c1ff8c1e2bd08a57c6a849895d6ff; version=736b81e075172f1e6cd7a8bc1a1374a2dee9e4dc <4a120221661fcecb253448d7b041a52d47f1d91f; version=736b81e075172f1e6cd7a8bc1a1374a2dee9e4dc <7a874e8b54ea21094f7fd2d428b164394c6cb316; version=736b81e075172f1e6cd7a8bc1a1374a2dee9e4dc <ace57bd1fb49d193edec5f6a1f255f48dd5fca90

Published CVSS scores

7.1UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
7.0Oracle LinuxCVSS:3.1/AV:L/AC:H/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

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

See the directory against your own environment.

Your stack

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