CVE-2022-49032

Kernel data disclosure via undersized AFE4404 arrays

Published Oct 21, 2024 · Updated May 11, 2026

Out-of-bounds reads in the Linux AFE4404 IIO driver allow local users to disclose kernel data or interrupt the system via sysfs. The afe4404_read_raw and afe4404_write_raw paths use chan->address to index LED and OFFDAC arrays containing fewer elements than the channel table. Exploitation requires low-privileged local access to an AFE4404 sysfs device and results in adjacent kernel-data disclosure or a host halt.

CVSS severity7.1
High
EPSS probability0.24%
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 reads in the Linux AFE4404 IIO driver allow local users to disclose kernel data or interrupt the system via sysfs. The afe4404_read_raw and afe4404_write_raw paths use chan->address to index LED and OFFDAC arrays containing fewer elements than the channel table. Exploitation requires low-privileged local access to an AFE4404 sysfs device and results in adjacent kernel-data disclosure or a host halt.

The record

CVE
CVE-2022-49032
Published
Oct 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 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=4.8
  2. Affected versionversion=b36e8257641a043764c62240316610c81e36376c <113c08030a89aaf406f8a1d4549d758a67c2afba
  3. Affected versionversion=b36e8257641a043764c62240316610c81e36376c <3f566b626029ca8598d48e5074e56bb37399ca1b
  4. Affected versionversion=b36e8257641a043764c62240316610c81e36376c <5eb114f55b37dbc0487aa9c1913b81bb7837f1c4
  5. Affected versionversion=b36e8257641a043764c62240316610c81e36376c <68de7da092f38395dde523f2e5db26eba6c23e28
  6. Affected versionversion=b36e8257641a043764c62240316610c81e36376c <d45d9f45e7b1365fd0d9bf14680d6d5082a590d1
  7. Affected versionversion=b36e8257641a043764c62240316610c81e36376c <f5575041ec15310bdc50c42b8b22118cc900226e
  8. Affected versionversion=b36e8257641a043764c62240316610c81e36376c <f7419fc42afc035f6b29ce713e17dcd2000c833f
  9. Affected versionversion=b36e8257641a043764c62240316610c81e36376c <fc92d9e3de0b2d30a3ccc08048a5fad533e4672b

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.8; version=b36e8257641a043764c62240316610c81e36376c <113c08030a89aaf406f8a1d4549d758a67c2afba; version=b36e8257641a043764c62240316610c81e36376c <3f566b626029ca8598d48e5074e56bb37399ca1b; version=b36e8257641a043764c62240316610c81e36376c <5eb114f55b37dbc0487aa9c1913b81bb7837f1c4; version=b36e8257641a043764c62240316610c81e36376c <68de7da092f38395dde523f2e5db26eba6c23e28; version=b36e8257641a043764c62240316610c81e36376c <d45d9f45e7b1365fd0d9bf14680d6d5082a590d1; version=b36e8257641a043764c62240316610c81e36376c <f5575041ec15310bdc50c42b8b22118cc900226e; version=b36e8257641a043764c62240316610c81e36376c <f7419fc42afc035f6b29ce713e17dcd2000c833f; version=b36e8257641a043764c62240316610c81e36376c <fc92d9e3de0b2d30a3ccc08048a5fad533e4672b

Published CVSS scores

7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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 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-125Out-of-bounds Read
T1005Data from Local System

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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