CVE-2024-21161

Local denial of service via undisclosed Core flaw

Published Jul 16, 2024 · Updated Mar 26, 2025

Denial of service in Oracle VM VirtualBox Core before 7.0.20 allows local users on Linux hosts to hang or repeatedly crash VirtualBox. Oracle has not disclosed the affected function or the incorrect operation that triggers the Core failure. Exploitation requires a low-privileged account on the host, and the documented consequence is limited to interruption of VirtualBox availability.

CVSS severity5.5
Medium
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

Denial of service in Oracle VM VirtualBox Core before 7.0.20 allows local users on Linux hosts to hang or repeatedly crash VirtualBox. Oracle has not disclosed the affected function or the incorrect operation that triggers the Core failure. Exploitation requires a low-privileged account on the host, and the documented consequence is limited to interruption of VirtualBox availability.

The record

CVE
CVE-2024-21161
Published
Jul 16, 2024
Updated
Mar 26, 2025
Vendor
Oracle Corporation
Product
Oracle VM VirtualBox
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 26, 2025Record 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=* <7.0.20

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Oracle Corporation · Oracle VM VirtualBoxversion=* <7.0.20

Published CVSS scores

5.5Oracle CorporationCVSS: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.

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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

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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