CVE-2026-21956

CWE-400 — Uncontrolled Resource Consumption7 documents7 sources
Severity
8.2HIGH
EPSS
0.0%
top 87.18%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Oracle Corporation Oracle VM VirtualboxOracle VM Virtualbox
Timeline
PublishedJan 20
Latest updateJan 21

Description

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are 7.1.14 and 7.2.4. Easily exploitable vulnerability allows high 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 (scope change). Successful attacks of this vulnerability can result in t…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HExploitability: 1.5 | Impact: 6.0

Affected Packages2 packages

▶NVDoracle/vm_virtualbox7.1.14, 7.2.4+1
▶CVEListV5oracle_corporation/oracle_vm_virtualbox7.1.14, 7.2.4+1

🔴Vulnerability Details

3
GHSA
GHSA-r9hg-xj8m-mw5m: Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core)↗2026-01-21
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OSV
CVE-2026-21956: Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core)↗2026-01-20
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CVEList
CVE-2026-21956: Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core)↗2026-01-20
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📋Vendor Advisories

2
Oracle
Oracle Oracle Virtualization Risk Matrix: Core — CVE-2026-21956↗2026-01-15
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Debian
CVE-2026-21956: virtualbox - Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (comp...↗2026
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🕵️Threat Intelligence

1
Wiz
CVE-2026-21956 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-21956 (HIGH CVSS 8.2) | Vulnerability in the Oracle VM Virt | cvebase.io