CVE-2023-54087

Service interrupt via unregistered UBI device deletion

Published Dec 24, 2025 · Updated Dec 24, 2025

NULL pointer dereference in Linux UBI from 2.6.22 allows attackers to cause a service interrupt via failed volume-device registration. After cdev_add fails in ubi_add_volume, kill_volumes calls ubi_free_volume, which passes an unregistered device to device_unregister. Reachability requires a UBI volume-add failure during initialization; public records do not establish attacker control over that failure.

CVSS severityUnavailable
Unscored
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

NULL pointer dereference in Linux UBI from 2.6.22 allows attackers to cause a service interrupt via failed volume-device registration. After cdev_add fails in ubi_add_volume, kill_volumes calls ubi_free_volume, which passes an unregistered device to device_unregister. Reachability requires a UBI volume-add failure during initialization; public records do not establish attacker control over that failure.

The record

CVE
CVE-2023-54087
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 2025Record 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=2.6.22
  2. Affected versionversion=801c135ce73d5df1caf3eca35b66a10824ae0707 <234c53e57424992e657e6f4acc00d3df0983176f
  3. Affected versionversion=801c135ce73d5df1caf3eca35b66a10824ae0707 <2ea7195b195009ecf0046e55361f393ba96d02db
  4. Affected versionversion=801c135ce73d5df1caf3eca35b66a10824ae0707 <45b2c5ca4d2edae70f19fdb086bd927840c4c309
  5. Affected versionversion=801c135ce73d5df1caf3eca35b66a10824ae0707 <5558bcf1c58720ca6e9d6198d921cb3aa337f038
  6. Affected versionversion=801c135ce73d5df1caf3eca35b66a10824ae0707 <5ec4c8aca5a221756a9007deadfea92795319fee
  7. Affected versionversion=801c135ce73d5df1caf3eca35b66a10824ae0707 <9eccdb0760cbcb4427b5303a83a3007de998af51
  8. Affected versionversion=801c135ce73d5df1caf3eca35b66a10824ae0707 <c15859bfd326c10230f09cb48a17f8a35f190342
  9. Affected versionversion=801c135ce73d5df1caf3eca35b66a10824ae0707 <fcbc795abe7897da4b5d2a6ab5010e36774b00c2

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.22; version=801c135ce73d5df1caf3eca35b66a10824ae0707 <234c53e57424992e657e6f4acc00d3df0983176f; version=801c135ce73d5df1caf3eca35b66a10824ae0707 <2ea7195b195009ecf0046e55361f393ba96d02db; version=801c135ce73d5df1caf3eca35b66a10824ae0707 <45b2c5ca4d2edae70f19fdb086bd927840c4c309; version=801c135ce73d5df1caf3eca35b66a10824ae0707 <5558bcf1c58720ca6e9d6198d921cb3aa337f038; version=801c135ce73d5df1caf3eca35b66a10824ae0707 <5ec4c8aca5a221756a9007deadfea92795319fee; version=801c135ce73d5df1caf3eca35b66a10824ae0707 <9eccdb0760cbcb4427b5303a83a3007de998af51; version=801c135ce73d5df1caf3eca35b66a10824ae0707 <c15859bfd326c10230f09cb48a17f8a35f190342; version=801c135ce73d5df1caf3eca35b66a10824ae0707 <fcbc795abe7897da4b5d2a6ab5010e36774b00c2

Published CVSS scores

No CVSS assessment is available in this record.

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)
VectorUnavailable
PrivilegesUnavailable
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

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Your stack

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