CVE-2021-2264

HIGHNVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.4EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 8.4Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is Prior to 6.1.20. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle VM VirtualBox accessible data as well as unauthorized access to critical data or complete access to all Oracle VM VirtualBox accessible data. CVSS 3.1 Base Score 8.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N).

CVSS v3
8.4
EG Score
8.4HIGHmedium confidence
EG Risk
38
EG Risk 38/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity84% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.7%
EPSS %ILE
51st
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

April 22, 2021

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Sep 4, 2026
Fix referenced — no release confirmed yet.
generic

Oracle VirtualBox: Multiple Vulnerabilities (GLSA 202208-36) — Gentoo security

https://security.gentoo.org/glsa/202208-36
generic

oss-security - virtualbox: CVE-2021-25319: missing sticky bit in openSUSE packaging for /etc/box allows local root exploit for members of vboxusers group

http://www.openwall.com/lists/oss-security/2021/04/26/2
generic

oss-security - virtualbox: CVE-2021-2264: vboxautostart-service.sh allows injection of parameters in 'su' invocation

http://www.openwall.com/lists/oss-security/2021/04/26/1

Data Freshness Timeline

(refreshed 9× in last 7d / 31× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 178 total refreshes for this CVE.

  1. 2026-10-06 15:14 UTCEPSS rescore
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  8. 2026-09-30 15:30 UTCEG score recompute
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  1. 2026-09-13 16:43 UTCEPSS rescore
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  24. 2026-08-20 22:52 UTCEPSS rescore
  25. 2026-08-19 17:01 UTCEPSS rescore
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  28. 2026-08-16 14:53 UTCEPSS rescore
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  45. 2026-07-30 16:25 UTCEPSS rescore
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  50. 2026-07-26 14:52 UTCEPSS rescore
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  52. 2026-07-25 14:15 UTCEPSS rescore
  53. 2026-07-24 14:15 UTCEPSS rescore
  54. 2026-07-23 14:16 UTCEPSS rescore
  55. 2026-07-23 01:57 UTCEG score recompute
  56. 2026-07-22 22:44 UTCEG score recompute
  57. 2026-07-22 14:06 UTCEPSS rescore
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  59. 2026-07-21 15:22 UTCEPSS rescore
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  73. 2026-07-13 06:10 UTCEPSS rescore
  74. 2026-07-12 05:44 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2021-2264?
CVE-2021-2264 is a high vulnerability published on April 22, 2021. Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is Prior to 6.1.20. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise…
When was CVE-2021-2264 disclosed?
CVE-2021-2264 was first published on April 22, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-2264 actively exploited?
CVE-2021-2264 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (51st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2021-2264?
CVE-2021-2264 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2021-2264?
A fix for CVE-2021-2264 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

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