CVE-2024-47698

Kernel memory corruption via out-of-range PID index

Published Oct 21, 2024 · Updated Aug 5, 2026

Out-of-bounds write in Linux kernel rtl2832 PID filtering allows local users to corrupt kernel memory through filter index 32. rtl2832_pid_filter accepts index 32 because its upper-bound test uses > 32, after which set_bit or clear_bit accesses beyond the 32-bit dev->filters field. Triggering the flaw requires access to an RTL2832 DVB device with hardware PID filtering, and the write can destabilize the driver or kernel.

CVSS severity7.8
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Linux kernel rtl2832 PID filtering allows local users to corrupt kernel memory through filter index 32. rtl2832_pid_filter accepts index 32 because its upper-bound test uses > 32, after which set_bit or clear_bit accesses beyond the 32-bit dev->filters field. Triggering the flaw requires access to an RTL2832 DVB device with hardware PID filtering, and the write can destabilize the driver or kernel.

The record

CVE
CVE-2024-47698
Published
Oct 21, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=4.0
  2. Affected versionversion=4b01e01a81b6629878344430531ced347cc2ed5b <15bea004e939d938a6771dfcf2a26cc899ffd20a
  3. Affected versionversion=4b01e01a81b6629878344430531ced347cc2ed5b <49b33c38d202d3327dcfd058e27f541dcc308b92
  4. Affected versionversion=4b01e01a81b6629878344430531ced347cc2ed5b <527ab3eb3b0b4a6ee00e183c1de6a730239e2835
  5. Affected versionversion=4b01e01a81b6629878344430531ced347cc2ed5b <66dbe0df6eccc7ee53a2c35016ce81e13b3ff447
  6. Affected versionversion=4b01e01a81b6629878344430531ced347cc2ed5b <6ae3b9aee42616ee93c4585174f40c767828006d
  7. Affected versionversion=4b01e01a81b6629878344430531ced347cc2ed5b <7065c05c6d58b9b9a98127aa14e9a5ec68173918
  8. Affected versionversion=4b01e01a81b6629878344430531ced347cc2ed5b <8ae06f360cfaca2b88b98ca89144548b3186aab1
  9. Affected versionversion=4b01e01a81b6629878344430531ced347cc2ed5b <a879b6cdd48134a3d58949ea4f075c75fa2d7d71
  10. Affected versionversion=4b01e01a81b6629878344430531ced347cc2ed5b <bedd42e07988dbdd124b23e758ffef7a681b9c60

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.0; version=4b01e01a81b6629878344430531ced347cc2ed5b <15bea004e939d938a6771dfcf2a26cc899ffd20a; version=4b01e01a81b6629878344430531ced347cc2ed5b <49b33c38d202d3327dcfd058e27f541dcc308b92; version=4b01e01a81b6629878344430531ced347cc2ed5b <527ab3eb3b0b4a6ee00e183c1de6a730239e2835; version=4b01e01a81b6629878344430531ced347cc2ed5b <66dbe0df6eccc7ee53a2c35016ce81e13b3ff447; version=4b01e01a81b6629878344430531ced347cc2ed5b <6ae3b9aee42616ee93c4585174f40c767828006d; version=4b01e01a81b6629878344430531ced347cc2ed5b <7065c05c6d58b9b9a98127aa14e9a5ec68173918; version=4b01e01a81b6629878344430531ced347cc2ed5b <8ae06f360cfaca2b88b98ca89144548b3186aab1; version=4b01e01a81b6629878344430531ced347cc2ed5b <a879b6cdd48134a3d58949ea4f075c75fa2d7d71; version=4b01e01a81b6629878344430531ced347cc2ed5b <bedd42e07988dbdd124b23e758ffef7a681b9c60

Published CVSS scores

7.8Linux Kernel CVE TeamCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

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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