CVE-2024-38621

Kernel memory corruption via reversed bounds check

Published Jun 21, 2024 · Updated May 11, 2026

An out-of-bounds write in the Linux stk1160 USB video driver allows local users to corrupt kernel memory during video capture. The check subtracts bytesused from length in the wrong order and does not calculate the actual interlaced destination offset, so unsigned wraparound defeats the overflow guard. Low-privileged local access to an stk1160-backed capture path is required; the bounded consequences are kernel-data disclosure and service interruption.

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 write in the Linux stk1160 USB video driver allows local users to corrupt kernel memory during video capture. The check subtracts bytesused from length in the wrong order and does not calculate the actual interlaced destination offset, so unsigned wraparound defeats the overflow guard. Low-privileged local access to an stk1160-backed capture path is required; the bounded consequences are kernel-data disclosure and service interruption.

The record

CVE
CVE-2024-38621
Published
Jun 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 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=3.7
  2. Affected versionversion=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <7532bcec0797adfa08791301c3bcae14141db3bd
  3. Affected versionversion=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <a08492832cc4cacc24e0612f483c86ca899b9261
  4. Affected versionversion=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <a16775828aaed1c54ff4e6fe83e8e4d5c6a50cb7
  5. Affected versionversion=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <b504518a397059e1d55c521ba0ea2b545a6c4b52
  6. Affected versionversion=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <d410017a7181cb55e4a5c810b32b75e4416c6808
  7. Affected versionversion=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <ecf4ddc3aee8ade504c4d36b7b4053ce6093e200
  8. Affected versionversion=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <f6a392266276730bea893b55d12940e32a25f56a
  9. Affected versionversion=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <faa4364bef2ec0060de381ff028d1d836600a381

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.7; version=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <7532bcec0797adfa08791301c3bcae14141db3bd; version=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <a08492832cc4cacc24e0612f483c86ca899b9261; version=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <a16775828aaed1c54ff4e6fe83e8e4d5c6a50cb7; version=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <b504518a397059e1d55c521ba0ea2b545a6c4b52; version=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <d410017a7181cb55e4a5c810b32b75e4416c6808; version=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <ecf4ddc3aee8ade504c4d36b7b4053ce6093e200; version=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <f6a392266276730bea893b55d12940e32a25f56a; version=9cb2173e6ea8f2948bd1367c93083a2500fcf08f <faa4364bef2ec0060de381ff028d1d836600a381

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-787Out-of-bounds Write

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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