CVE-2024-53197Known exploitation

Kernel memory corruption via inflated USB configuration count

Published Dec 27, 2024 · Updated May 11, 2026

Out-of-bounds access in Linux ALSA USB audio allows physically proximate attackers to corrupt kernel memory through a malicious device. The Extigy and Mbox quirk replaces bNumConfigurations after dev->config allocation without bounding the new count, so usb_destroy_configuration iterates beyond the allocated arrays. Exploitation requires a crafted emulated USB audio device to be connected; observed exploit chains achieved root code execution on locked Android phones.

CVSS severity7.8
High
EPSS probability3.56%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in Linux ALSA USB audio allows physically proximate attackers to corrupt kernel memory through a malicious device. The Extigy and Mbox quirk replaces bNumConfigurations after dev->config allocation without bounding the new count, so usb_destroy_configuration iterates beyond the allocated arrays. Exploitation requires a crafted emulated USB audio device to be connected; observed exploit chains achieved root code execution on locked Android phones.

The record

CVE
CVE-2024-53197
Published
Dec 27, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787, T1200, T1068
Attack vector
physical
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 25, 2024Exploitation reportedCellebrite USB zero-day exploit chain against a Serbian activist
  2. Dec 27, 2024CVE publishedPublication date reported by the CVE source.
  3. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0b4ea4bfe16566b84645ded1403756a2dc4e0f19
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <379d3b9799d9da953391e973b934764f01e03960
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <62dc01c83fa71e10446ee4c31e0e3d5d1291e865
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <920a369a9f014f10ec282fd298d0666129379f1b
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9887d859cd60727432a01564e8f91302d361b72b
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9b8460a2a7ce478e0b625af7c56d444dc24190f7
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b521b53ac6eb04e41c03f46f7fe452e4d8e9bcca
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b8f8b81dabe52b413fe9e062e8a852c48dd0680d
  9. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b909df18ce2a998afef81d58bbd1a05dc0788c40
  10. Affected versionversion=2.6.12

What conditions does exploitation require?

Attack vectorphysical
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0b4ea4bfe16566b84645ded1403756a2dc4e0f19; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <379d3b9799d9da953391e973b934764f01e03960; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <62dc01c83fa71e10446ee4c31e0e3d5d1291e865; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <920a369a9f014f10ec282fd298d0666129379f1b; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9887d859cd60727432a01564e8f91302d361b72b; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9b8460a2a7ce478e0b625af7c56d444dc24190f7; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b521b53ac6eb04e41c03f46f7fe452e4d8e9bcca; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b8f8b81dabe52b413fe9e062e8a852c48dd0680d; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b909df18ce2a998afef81d58bbd1a05dc0788c40; version=2.6.12

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.8OracleCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
PrivilegesUnavailable
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1200Hardware Additions
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.

Reported exploitation

Technologies

Your stack

See the directory against your own environment.

Your stack

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