CVE-2026-98188

Kernel out-of-bounds read via unchecked EEPROM counts

Published Oct 6, 2026 · Updated Oct 6, 2026

An out-of-bounds read in the Linux p54 wireless driver allows attackers to trigger a kernel memory over-read with malformed device EEPROM data. The p54_convert_rev0() and p54_convert_rev1() functions use channel and points-per-channel counts from a calibration entry without checking that the entry contains the declared data. Triggering the read requires a p54-supported device with a malformed EEPROM entry; the published reproducer demonstrates the over-read, not data disclosure or code execution.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds read in the Linux p54 wireless driver allows attackers to trigger a kernel memory over-read with malformed device EEPROM data. The p54_convert_rev0() and p54_convert_rev1() functions use channel and points-per-channel counts from a calibration entry without checking that the entry contains the declared data. Triggering the read requires a p54-supported device with a malformed EEPROM entry; the published reproducer demonstrates the over-read, not data disclosure or code execution.

The record

CVE
CVE-2026-98188
Published
Oct 6, 2026
Updated
Oct 6, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 6, 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=2.6.24
  2. Affected versionversion=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <03d313e3dfb49a44c10a5c423452967694fb85e2
  3. Affected versionversion=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <3bdcc4d61212b001b8752d80036509b4974ce16c
  4. Affected versionversion=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <41cdf14bf4b52fbe4673a172c2a6ad756cb08111
  5. Affected versionversion=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <42f4b03971f9d6329c4cbd1ea5155210d16ab65b
  6. Affected versionversion=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <4d767d6f8753db22bfc14c2724bd9cee677ffb03
  7. Affected versionversion=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <81084c967c18233b19799a0c3352ebac043f31e2
  8. Affected versionversion=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <b0c906107150b16925ee66da09127259864c7f36
  9. Affected versionversion=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <ce858fa6b8a214dee5adb82358885fa024cdd887

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.24; version=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <03d313e3dfb49a44c10a5c423452967694fb85e2; version=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <3bdcc4d61212b001b8752d80036509b4974ce16c; version=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <41cdf14bf4b52fbe4673a172c2a6ad756cb08111; version=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <42f4b03971f9d6329c4cbd1ea5155210d16ab65b; version=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <4d767d6f8753db22bfc14c2724bd9cee677ffb03; version=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <81084c967c18233b19799a0c3352ebac043f31e2; version=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <b0c906107150b16925ee66da09127259864c7f36; version=eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <ce858fa6b8a214dee5adb82358885fa024cdd887

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 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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