CVE-2022-21554

Denial of service via undisclosed Core flaw

Published Jul 19, 2022 · Updated Sep 24, 2024

Denial of service in Oracle VM VirtualBox Core before 6.1.36 allows local users with high privileges to hang or repeatedly crash VirtualBox. Oracle has not disclosed the affected Core locus or the incorrect operation that processes attacker-controlled input. Exploitation requires a high-privilege logon to the host, and the documented consequence is limited to service interruption through a hang or frequently repeatable crash.

CVSS severity4.4
Medium
EPSS probability0.35%
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 6.1.36 allows local users with high privileges to hang or repeatedly crash VirtualBox. Oracle has not disclosed the affected Core locus or the incorrect operation that processes attacker-controlled input. Exploitation requires a high-privilege logon to the host, and the documented consequence is limited to service interruption through a hang or frequently repeatable crash.

The record

CVE
CVE-2022-21554
Published
Jul 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle Corporation
Product
Oracle VM VirtualBox
Classifications
T1499
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jul 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2024Record 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=unspecified <6.1.36

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Oracle Corporation · Oracle VM VirtualBoxversion=unspecified <6.1.36

Published CVSS scores

4.4Oracle CorporationCVSS:3.1/AV:L/AC:L/PR:H/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
Privilegesadmin
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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