CVE-2024-50072

Local denial of service via VERW operand

Published Oct 29, 2024 · Updated May 23, 2026

Denial of service in affected Linux kernel releases allows local users to crash 32-bit systems by invoking vm86 under VERW mitigations. CLEAR_CPU_BUFFERS passes its VERW memory operand through an arbitrary user DS selector, so an address outside that segment's limit raises a general-protection fault while returning to user space. The crash is reachable only in 32-bit mode with VERW-based MDS or RFDS mitigation enabled, interrupting the affected host.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in affected Linux kernel releases allows local users to crash 32-bit systems by invoking vm86 under VERW mitigations. CLEAR_CPU_BUFFERS passes its VERW memory operand through an arbitrary user DS selector, so an address outside that segment's limit raises a general-protection fault while returning to user space. The crash is reachable only in 32-bit mode with VERW-based MDS or RFDS mitigation enabled, interrupting the affected host.

The record

CVE
CVE-2024-50072
Published
Oct 29, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 29, 2024CVE publishedPublication date reported by the CVE source.
  2. May 23, 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=2e3087505ddb8ba2d3d4c81306cca11e868fcdb9 <38c5fe74f3bef98f75d16effa49836d50c9b6097
  2. Affected versionversion=50f021f0b985629accf10481a6e89af8b9700583 <bfd1d223d80cb29a210caa1bd5e21f0816d58f02
  3. Affected versionversion=5.10.215 <5.10.229
  4. Affected versionversion=5.15.154 <5.15.171
  5. Affected versionversion=51eca9f1fd047b500137d021f882d93f03280118
  6. Affected versionversion=6.1.81 <6.1.116
  7. Affected versionversion=6.6.21 <6.6.58
  8. Affected versionversion=6.7.9 <6.8
  9. Affected versionversion=6.8
  10. Affected versionversion=a0e2dab44d22b913b4c228c8b52b2a104434b0b3 <bc576fbaf82deded606e69a00efe9752136bf91d
  11. Affected versionversion=a0e2dab44d22b913b4c228c8b52b2a104434b0b3 <e4d2102018542e3ae5e297bc6e229303abff8a0f
  12. Affected versionversion=ca13d8cd8dac25558da4ee8df4dc70e8e7f9d762 <481b477ab63c7245715a3e57ba79eb87c2dc0d02
  13. Affected versionversion=d54de9f2a127090f2017184e8257795b487d5312 <ada431c6c31a2c8c37991c46089af5caa23a9c6e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2e3087505ddb8ba2d3d4c81306cca11e868fcdb9 <38c5fe74f3bef98f75d16effa49836d50c9b6097; version=50f021f0b985629accf10481a6e89af8b9700583 <bfd1d223d80cb29a210caa1bd5e21f0816d58f02; version=5.10.215 <5.10.229; version=5.15.154 <5.15.171; version=51eca9f1fd047b500137d021f882d93f03280118; version=6.1.81 <6.1.116; version=6.6.21 <6.6.58; version=6.7.9 <6.8; version=6.8; version=a0e2dab44d22b913b4c228c8b52b2a104434b0b3 <bc576fbaf82deded606e69a00efe9752136bf91d; version=a0e2dab44d22b913b4c228c8b52b2a104434b0b3 <e4d2102018542e3ae5e297bc6e229303abff8a0f; version=ca13d8cd8dac25558da4ee8df4dc70e8e7f9d762 <481b477ab63c7245715a3e57ba79eb87c2dc0d02; version=d54de9f2a127090f2017184e8257795b487d5312 <ada431c6c31a2c8c37991c46089af5caa23a9c6e

Published CVSS scores

5.5NIST NVDCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

T1499.004Application or System Exploitation

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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