# CVE-2026-87277: Oracle VM VirtualBox denial of service via RDP

Source: https://junglewise.ai/threats/cve-2026-87277-oracle-vm-virtualbox-denial-of-service-via-rdp  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-87277 · Severity: high · CVSS 7.5 · Published 2026-09-15

Oracle VM VirtualBox is a virtualization platform that allows users to run multiple operating systems on a single computer. An unauthenticated attacker with network access can exploit a vulnerability in the RDP component to crash the VirtualBox application, disrupting virtual machine operations and causing complete service outage to users relying on virtualized environments.

Technologies: [Oracle Vm Virtualbox](https://junglewise.ai/threats/technologies/virtualbox). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-87277 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-87277 being exploited in the wild.

**How severe is CVE-2026-87277?** High severity, with a CVSS score of 7.5, published 15 September 2026.

**Which products and versions are affected?** Oracle Vm Virtualbox 7.2.16.

**Is there a fix for CVE-2026-87277?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-87277 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-87277?** Check whether you run Oracle Vm Virtualbox at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is a denial-of-service vulnerability in Oracle VM VirtualBox 7.2.16's RDP (Remote Desktop Protocol) handling component. The vulnerability is easily exploitable and requires only network access; no authentication or user interaction is needed. An unauthenticated attacker can send specially crafted RDP traffic to cause the VirtualBox process to hang or crash repeatedly, resulting in complete unavailability of virtualized systems. The vulnerability has been rated high severity with a CVSS 3.1 score of 7.5 affecting availability.

## Affected products

- Oracle VM VirtualBox 7.2.16

## Timeline

- 2026-09-15: disclosed

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

## Related threats

- [Oracle VM VirtualBox core privilege escalation via physical network access](https://junglewise.ai/threats/cve-2026-87322-vulnerability-in-the-oracle-vm-virtualbox-product-of-oracle)
- [Oracle VM VirtualBox denial-of-service in Core](https://junglewise.ai/threats/cve-2026-87311-vulnerability-in-the-oracle-vm-virtualbox-product-of-oracle)
- [Oracle VM VirtualBox denial of service in Core](https://junglewise.ai/threats/cve-2026-87303-vulnerability-in-the-oracle-vm-virtualbox-product-of-oracle)
- [Oracle VM VirtualBox privilege escalation in Core](https://junglewise.ai/threats/cve-2026-87301-vulnerability-in-the-oracle-vm-virtualbox-product-of-oracle)
- [Oracle VM VirtualBox privilege escalation in Core component](https://junglewise.ai/threats/cve-2026-101599-vulnerability-in-the-oracle-vm-virtualbox-product-of-oracle)