CVE-2026-46877 Oracle Corporation CVE debrief

Who should care

System administrators and security teams responsible for Oracle VM VirtualBox infrastructure should be aware of this vulnerability and take necessary actions to mitigate the risk. They should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. They should also plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.

Technical summary

The vulnerability has a CVSS 3.1 Base Score of 6.0 (Confidentiality impacts) and a vector of (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N). The affected version is Oracle VM VirtualBox 7.2.8. The vulnerability allows a 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 unauthorized access to critical data or complete access to all Oracle VM VirtualBox accessible data. The vulnerability affects the VMSVGA device component.

Defensive priority

Medium priority due to the potential for unauthorized access to critical data.

Recommended defensive actions

• Apply the vendor's security patch as soon as possible.
• Restrict access to the Oracle VM VirtualBox infrastructure to only necessary personnel.
• Monitor Oracle VM VirtualBox logs for suspicious activity.
• Consider implementing additional security controls, such as multi-factor authentication.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-06-17T10:54:05.330Z and was last modified on 2026-06-18T13:51:02.473Z. The NVD entry is currently Analyzed. The vulnerability affects Oracle VM VirtualBox 7.2.8 and has a CVSS 3.1 Base Score of 6.0 (Confidentiality impacts). The vulnerability allows a 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 unauthorized access to critical data or complete access to all Oracle VM VirtualBox accessible data.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.