CVE-2023-52985

Kernel crash via unsupported Ethernet PHY power-down

Published Mar 27, 2025 · Updated May 11, 2026

A suspend-path denial of service in Linux 5.18 through 6.1.10 allows local users to crash Verdin i.MX8M Mini systems. The imx8mm-verdin device tree fails to keep the Ethernet PHY regulator always on, so the FEC suspend path powers down an unsupported PHY and its interrupt handler enters phy_error. The flaw applies only to arm64 systems using the Verdin i.MX8M Mini device tree and is reached when the system enters freeze or memory suspend.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A suspend-path denial of service in Linux 5.18 through 6.1.10 allows local users to crash Verdin i.MX8M Mini systems. The imx8mm-verdin device tree fails to keep the Ethernet PHY regulator always on, so the FEC suspend path powers down an unsupported PHY and its interrupt handler enters phy_error. The flaw applies only to arm64 systems using the Verdin i.MX8M Mini device tree and is reached when the system enters freeze or memory suspend.

The record

CVE
CVE-2023-52985
Published
Mar 27, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 27, 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=5.18
  2. Affected versionversion=6a57f224f7346c8d23596f2ef1ce360669926f54 <0bdd5a7b517f16fdffc444be6516c45788548d08
  3. Affected versionversion=6a57f224f7346c8d23596f2ef1ce360669926f54 <39c95d0c357d7ef76aea958c1bece6b24f9b2e7e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.18; version=6a57f224f7346c8d23596f2ef1ce360669926f54 <0bdd5a7b517f16fdffc444be6516c45788548d08; version=6a57f224f7346c8d23596f2ef1ce360669926f54 <39c95d0c357d7ef76aea958c1bece6b24f9b2e7e

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5SUSECVSS: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 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

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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