CVE-2021-2286

Unauthenticated local data modification

Published Apr 22, 2021 · Updated Sep 26, 2024

Oracle VM VirtualBox before 6.1.20 allows unauthenticated local users to modify accessible data through a Core flaw. Oracle has not published the affected Core operation or explained how untrusted input is mishandled. Exploitation requires logon to the infrastructure running VirtualBox and can create, delete, or alter critical or otherwise accessible data, with no stated confidentiality or availability impact.

CVSS severity7.1
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Oracle VM VirtualBox before 6.1.20 allows unauthenticated local users to modify accessible data through a Core flaw. Oracle has not published the affected Core operation or explained how untrusted input is mishandled. Exploitation requires logon to the infrastructure running VirtualBox and can create, delete, or alter critical or otherwise accessible data, with no stated confidentiality or availability impact.

The record

CVE
CVE-2021-2286
Published
Apr 22, 2021
Updated
Sep 26, 2024
Vendor
Oracle Corporation
Product
Oracle VM VirtualBox
Classifications
T1565.001
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

2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:P/A:N
7.1Oracle CorporationCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1565.001Data Manipulation

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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