CVE-2022-49249

Kernel-memory disclosure via mis-typed enum controls

Published Feb 26, 2025 · Updated May 11, 2026

An out-of-bounds read in the WCD938x ASoC codec in Linux 5.14 allows local users to read kernel memory through codec controls. The control declarations use integer-backed storage where ALSA expects enum items, so 64-bit long accesses overrun 32-bit enum storage on aarch64. Exploitation requires low-privilege local access to a system using the affected codec; the read can expose kernel memory or interrupt service.

CVSS severity7.1
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

An out-of-bounds read in the WCD938x ASoC codec in Linux 5.14 allows local users to read kernel memory through codec controls. The control declarations use integer-backed storage where ALSA expects enum items, so 64-bit long accesses overrun 32-bit enum storage on aarch64. Exploitation requires low-privilege local access to a system using the affected codec; the read can expose kernel memory or interrupt service.

The record

CVE
CVE-2022-49249
Published
Feb 26, 2025
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. Feb 26, 2025CVE 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=5.14
  2. Affected versionversion=e8ba1e05bdc016700c85fad559a812c2e795442f <adafea71b49ec4dbc44e0b84ec6eb602004a7a08
  3. Affected versionversion=e8ba1e05bdc016700c85fad559a812c2e795442f <cc587b7c8fbbe128f6bd0dad025a0caea5e6d164
  4. Affected versionversion=e8ba1e05bdc016700c85fad559a812c2e795442f <d09aee1b1da196be11ed86dd4897f228f2487613
  5. Affected versionversion=e8ba1e05bdc016700c85fad559a812c2e795442f <f03c0c94186d5876857132d97e28f20cdc100bdc

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.14; version=e8ba1e05bdc016700c85fad559a812c2e795442f <adafea71b49ec4dbc44e0b84ec6eb602004a7a08; version=e8ba1e05bdc016700c85fad559a812c2e795442f <cc587b7c8fbbe128f6bd0dad025a0caea5e6d164; version=e8ba1e05bdc016700c85fad559a812c2e795442f <d09aee1b1da196be11ed86dd4897f228f2487613; version=e8ba1e05bdc016700c85fad559a812c2e795442f <f03c0c94186d5876857132d97e28f20cdc100bdc

Published CVSS scores

7.1NIST NVDCVSS: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 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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