CVE-2021-2283

Accessible-data disclosure to local unauthenticated users

Published Apr 22, 2021 · Updated Sep 26, 2024

Information disclosure in Oracle VM VirtualBox Core before 6.1.20 allows local users to read all data accessible to VirtualBox. Oracle has not disclosed the flawed Core routine, the input it accepts, or the incorrect operation that exposes the data. Exploitation requires a logon to the host infrastructure, needs no additional privileges or user interaction, and affects confidentiality without reported data modification or service interruption.

CVSS severity7.1
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Oracle VM VirtualBox Core before 6.1.20 allows local users to read all data accessible to VirtualBox. Oracle has not disclosed the flawed Core routine, the input it accepts, or the incorrect operation that exposes the data. Exploitation requires a logon to the host infrastructure, needs no additional privileges or user interaction, and affects confidentiality without reported data modification or service interruption.

The record

CVE
CVE-2021-2283
Published
Apr 22, 2021
Updated
Sep 26, 2024
Vendor
Oracle Corporation
Product
Oracle VM VirtualBox
Classifications
T1005
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 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 <6.1.20

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle VM VirtualBoxversion=unspecified <6.1.20

Published CVSS scores

7.1Oracle CorporationCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data from Local System

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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