CVE-2025-38111

HIGH EPSS 7.6%
Published Jul 3, 202512mo ago · Modified Jun 17, 20262w ago
7.1 CVSS 3.1
High
Find Similar
Published Jul 3, 2025 12mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: net/mdiobus: Fix potential out-of-bounds read/write access When using publicly available tools like 'mdio-tools' to read/write data from/to network interface and its PHY via mdiobus, there is no verification of parameters passed to the ioctl and it accepts any mdio address. Currently there is support for 32 addresses in kernel via PHY_MAX_ADDR define, but it is possible to pass higher value than that via ioctl. While read/write operation should generally fail in this case, mdiobus provides stats array, where wrong address may allow out-of-bounds read/write. Fix that by adding address verification before read/write operation. While this excludes this access from any statistics, it improves security of read/write operation.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
7.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥5.6  –  <5.10.239
linuxlinux_kernel*≥5.11  –  <5.15.186
linuxlinux_kernel*≥5.16  –  <6.1.142
linuxlinux_kernel*≥6.2  –  <6.6.94
linuxlinux_kernel*≥6.7  –  <6.12.34
linuxlinux_kernel*≥6.13  –  <6.15.3
linuxlinux_kernel6.16any
debiandebian_linux11.0any

References 10

  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-082556.html
  • git.kernel.org https://git.kernel.org/stable/c/014ad9210373d2104f6ef10e6bb999a7a0a4c50e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/049af7ac45a6b407748ee0995278fd861e36df8f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0e629694126ca388916f059453a1c36adde219c4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/19c5875e26c4ed5686d82a7d8f7051385461b9eb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/73d478234a619f3476028cb02dee699c30ae8262
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b02d9d2732483e670bc34cb233d28e1d43b15da4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bab6bca0834cbb5be2a7cfe59ec6ad016ec72608
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Mailing ListThird Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Mailing ListThird Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/014ad9210373d2104f6ef10e6bb999a7a0a4c50e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/049af7ac45a6b407748ee0995278fd861e36df8f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0e629694126ca388916f059453a1c36adde219c4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/19c5875e26c4ed5686d82a7d8f7051385461b9eb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/73d478234a619f3476028cb02dee699c30ae8262
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b02d9d2732483e670bc34cb233d28e1d43b15da4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bab6bca0834cbb5be2a7cfe59ec6ad016ec72608
    Patch