CVE-2024-53062

Kernel memory disclosure via speculative array indexing

Published Nov 19, 2024 · Updated May 11, 2026

Spectre variant 1 in the Linux kernel mgb4 driver 6.7 through 6.11.7 allows local users to disclose kernel memory via sysfs. frequency_range_store() passes a user-controlled range to mgb4_cmt_set_vin_freq_range(), which speculatively indexes cmt_vals_in without constraining the index after a bounds check. Access to the MGB4 device frequency-range sysfs control is required; the transient access can expose kernel data, with no documented ability to modify persistent data.

CVSS severity7.1
High
EPSS probability0.22%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Spectre variant 1 in the Linux kernel mgb4 driver 6.7 through 6.11.7 allows local users to disclose kernel memory via sysfs. frequency_range_store() passes a user-controlled range to mgb4_cmt_set_vin_freq_range(), which speculatively indexes cmt_vals_in without constraining the index after a bounds check. Access to the MGB4 device frequency-range sysfs control is required; the transient access can expose kernel data, with no documented ability to modify persistent data.

The record

CVE
CVE-2024-53062
Published
Nov 19, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 19, 2024CVE 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=0ab13674a9bd10514486cf1670d71dbd8afec421 <2aee207e5b3c94ef859316008119ea06d6798d49
  2. Affected versionversion=0ab13674a9bd10514486cf1670d71dbd8afec421 <e0bc90742bbd6eb9c63e6c22f8f6e10be7b1e225
  3. Affected versionversion=6.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0ab13674a9bd10514486cf1670d71dbd8afec421 <2aee207e5b3c94ef859316008119ea06d6798d49; version=0ab13674a9bd10514486cf1670d71dbd8afec421 <e0bc90742bbd6eb9c63e6c22f8f6e10be7b1e225; version=6.7

Published CVSS scores

7.1NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
7.1CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
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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