Review reviewHigh

CVE-2025-38422

Linux Linux, linux kernel, debian linux

In the Linux kernel, the following vulnerability has been resolved: net: lan743x: Modify the EEPROM and OTP size for PCI1xxxx devices Maximum OTP and EEPROM size for hearthstone PCI1xxxx devices are 8 Kb and 64 Kb respectively. Adjust max size definitions and return correct EEPROM length based on device. Also prevent out-of-bound read/write.

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2025.07.26
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: net: lan743x: Modify the EEPROM and OTP size for PCI1xxxx devices Maximum OTP and EEPROM size for hearthstone PCI1xxxx devices are 8 Kb and 64 Kb respectively. Adjust max size definitions and return correct EEPROM length based on device. Also prevent out-of-bound read/write.

Affected product and versions

Product
Linux Linux, linux kernel, debian linux
Affected versions
>= 695846047aa9b4bb387473a9fd227a51ae7de5e9 < 6b4201d74d0a49af2123abf2c9d142e59566714b, >= 695846047aa9b4bb387473a9fd227a51ae7de5e9 < 088279ff18cdc437d6fac5890e0c52c624f78a5b, >= 695846047aa9b4bb387473a9fd227a51ae7de5e9 < 51318d644c993b3f7a60b8616a6a5adc1e967cd2, >= 695846047aa9b4bb387473a9fd227a51ae7de5e9 < 9c41d2a2aa3817946eb613522200cab55513ddaa, >= 695846047aa9b4bb387473a9fd227a51ae7de5e9 < 3b9935586a9b54d2da27901b830d3cf46ad66a1e, >= 4.19, >= 4.19 < 6.1.142, >= 6.2 < 6.6.95, >= 6.7 < 6.12.35, >= 6.13 < 6.15.4, 11.0
Fixed versions
6.1.142, 6.6.95, 6.12.35, 6.15.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel, debian linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available