CVE-2022-49252

Local disclosure or crash via enum misaccess

Published Feb 26, 2025 · Updated May 11, 2026

An out-of-bounds read in the ASoC RX macro codec in affected Linux kernel releases allows local users to disclose memory or crash the kernel. Enum-control callbacks access items through the long-sized integer.value member instead of the unsigned-int enumerated.item member, overrunning the control value on 64-bit builds. Affected upstream ranges are 5.12 through 5.15.32, 5.16 through 5.16.18, and 5.17 through 5.17.1; exploitation requires local access to a system using this codec.

CVSS severity7.1
High
EPSS probability0.26%
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 ASoC RX macro codec in affected Linux kernel releases allows local users to disclose memory or crash the kernel. Enum-control callbacks access items through the long-sized integer.value member instead of the unsigned-int enumerated.item member, overrunning the control value on 64-bit builds. Affected upstream ranges are 5.12 through 5.15.32, 5.16 through 5.16.18, and 5.17 through 5.17.1; exploitation requires local access to a system using this codec.

The record

CVE
CVE-2022-49252
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125, T1499
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=4f692926f562ff48abfcca6b16f36ff8d57473b6 <7e3629e256d1cabf801d00050550ade4d036cafe
  2. Affected versionversion=4f692926f562ff48abfcca6b16f36ff8d57473b6 <aed43e92e4b9187029903880d5db608f7fa1c53c
  3. Affected versionversion=4f692926f562ff48abfcca6b16f36ff8d57473b6 <bcfe5f76cc4051ea3f9eb5d2c8ea621641f290a5
  4. Affected versionversion=4f692926f562ff48abfcca6b16f36ff8d57473b6 <eb15c6ea692fd88d70698d874d9a0d667fb4cde9
  5. Affected versionversion=5.12

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4f692926f562ff48abfcca6b16f36ff8d57473b6 <7e3629e256d1cabf801d00050550ade4d036cafe; version=4f692926f562ff48abfcca6b16f36ff8d57473b6 <aed43e92e4b9187029903880d5db608f7fa1c53c; version=4f692926f562ff48abfcca6b16f36ff8d57473b6 <bcfe5f76cc4051ea3f9eb5d2c8ea621641f290a5; version=4f692926f562ff48abfcca6b16f36ff8d57473b6 <eb15c6ea692fd88d70698d874d9a0d667fb4cde9; version=5.12

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 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

CWE-125Out-of-bounds Read
T1499Endpoint Denial of Service

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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