CVE-2024-43842

Out-of-bounds kernel access via mismatched array index

Published Aug 17, 2024 · Updated May 11, 2026

Out-of-bounds array access in the Linux kernel rtw89 driver allows local users to read outside an array through debug statistics. rtw89_sta_info_get_iter() bounds-checks status->he_gi but indexes the he_gi array with unchecked rate->he_gi instead. Reachability requires local access to a kernel using the Realtek rtw89 driver; public records establish the invalid access but not a reliable higher-level exploit outcome.

CVSS severity7.8
High
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

Out-of-bounds array access in the Linux kernel rtw89 driver allows local users to read outside an array through debug statistics. rtw89_sta_info_get_iter() bounds-checks status->he_gi but indexes the he_gi array with unchecked rate->he_gi instead. Reachability requires local access to a kernel using the Realtek rtw89 driver; public records establish the invalid access but not a reliable higher-level exploit outcome.

The record

CVE
CVE-2024-43842
Published
Aug 17, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-129, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 17, 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=5.16
  2. Affected versionversion=e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd <7a0edc3d83aff3a48813d78c9cad9daf38decc74
  3. Affected versionversion=e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd <85099c7ce4f9e64c66aa397cd9a37473637ab891
  4. Affected versionversion=e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd <96ae4de5bc4c8ba39fd072369398f59495b73f58
  5. Affected versionversion=e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd <a2a095c08b95372d6d0c5819b77f071af5e75366

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.16; version=e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd <7a0edc3d83aff3a48813d78c9cad9daf38decc74; version=e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd <85099c7ce4f9e64c66aa397cd9a37473637ab891; version=e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd <96ae4de5bc4c8ba39fd072369398f59495b73f58; version=e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd <a2a095c08b95372d6d0c5819b77f071af5e75366

Published CVSS scores

7.8NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8CanonicalCVSS: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.

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

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

CWE-129Improper Validation of Array Index
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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