CVE-2024-21164

Guest-to-hypervisor data disclosure via EHCI out-of-bounds read

Published Jul 16, 2024 · Updated Mar 18, 2025

Out-of-bounds read in Oracle VM VirtualBox before 7.0.20 allows guest OS users to disclose limited hypervisor-accessible data. The virtual EHCI USB controller fails to validate guest-supplied data before reading beyond the end of an allocated buffer. Exploitation requires high-privileged guest code and high complexity; the flaw exposes data but does not directly alter data or interrupt service.

CVSS severity2.5
Low
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Oracle VM VirtualBox before 7.0.20 allows guest OS users to disclose limited hypervisor-accessible data. The virtual EHCI USB controller fails to validate guest-supplied data before reading beyond the end of an allocated buffer. Exploitation requires high-privileged guest code and high complexity; the flaw exposes data but does not directly alter data or interrupt service.

The record

CVE
CVE-2024-21164
Published
Jul 16, 2024
Updated
Mar 18, 2025
Vendor
Oracle Corporation
Product
Oracle VM VirtualBox
Classifications
Unavailable
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jul 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 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 privilegesadmin

What is affected?

Oracle Corporation · Oracle VM VirtualBoxversion=* <7.0.20

Published CVSS scores

2.5Oracle CorporationCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

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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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