Quick answers
- Is CVE-2026-87303 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-87303 being exploited in the wild.
- How severe is CVE-2026-87303?
- Medium severity, with a CVSS score of 5.9, published 20 October 2026.
- Which products and versions are affected?
- Oracle Vm Virtualbox 7.2.16.
- Is there a fix for CVE-2026-87303?
- 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-2026-87303 attacked?
- It is attacked with local access, in a network appliance.
- Am I affected by CVE-2026-87303?
- 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
A denial-of-service vulnerability in the VirtualBox Core component allows a low-privileged local attacker to cause a hang or crash via a malicious action requiring user interaction. The vulnerability has scope change, meaning compromise of VirtualBox can impact other products. The attack vector is local with low complexity and low privileges required.
Affected products
- Oracle VM VirtualBox 7.2.16
Timeline
- 2026-10-20: disclosed