Quick answers
- Is CVE-2026-87311 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-87311 being exploited in the wild.
- How severe is CVE-2026-87311?
- Medium severity, with a CVSS score of 5.6, published 20 October 2026.
- Which products and versions are affected?
- Oracle Vm Virtualbox 7.2.16.
- Is there a fix for CVE-2026-87311?
- 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-2026-87311 attacked?
- It is attacked with local access, in a network appliance.
- Am I affected by CVE-2026-87311?
- 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 difficult-to-exploit local vulnerability in the Core component of Oracle VM VirtualBox allows a low-privileged attacker with logon access to trigger a denial-of-service condition. The attack vector is local (AV:L) with high attack complexity (AC:H), and the vulnerability exhibits scope change, meaning compromise of VirtualBox can impact additional products. Successful exploitation results in a hang or repeated crash (complete DOS) with no confidentiality or integrity impact.
Affected products
- Oracle VM VirtualBox 7.2.16
Timeline
- 2026-10-20: disclosed