Vm Virtualbox CVE-2026-87273

The user wants a JSON analysis for CVE-2026-87273, Oracle VM VirtualBox Core, CVSS 8.6, AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Let me construct fields carefully.

Product name: "Oracle VM VirtualBox" (3 words... "Oracle VM VirtualBox" - that's 3 words). Good.

Summary: Do not start with "A vulnerability". Start with impact verb + product. Something like: "Oracle VM VirtualBox 7.2.16 contains a Core component flaw that lets an attacker with logon access to the host... trigger memory corruption via a crafted guest/host interaction requiring user interaction, leading to full takeover of the VirtualBox process with scope change affecting additional products."

Technical context: Hypervisor/core component, scope change S:C means the vulnerability in VirtualBox can impact other components (e.g., host OS or other VMs). AV:L means local access — attacker must have logon to infrastructure where VirtualBox executes — that's a common Oracle phrasing for AV:L (local logon, but not necessarily VM guest). CWE not provided, but Oracle typically assigns memory safety / sandbox escape classes. We shouldn't invent CWE. State that CWE was not assigned/provided and the root cause class is inferred from CVSS scope change and impacts — likely a flaw in the Core component enabling escape from intended privilege boundary.

Risk assessment: CVSS 8.6 high, AV:L reduces, AC:L, PR:N but requires logon (authentication requirement nuance — description says "unauthenticated attacker with logon to the infrastructure"). PR:N in vector but "with logon" is ambiguous — Oracle's AV:L/PR:N means the attacker has a local account on the host but no elevated privileges. UI:R — requires victim user interaction. S:C — scope change. EPSS not provided, no KEV, no POC info. State explicitly that EPSS/KEV data absent.

Affected products: Oracle VM VirtualBox 7.2.16 (per Oracle advisory cspusep2026). Note the advisory URL. CPE not provided.

Remediation: patch — Oracle advisories reference fixes in CPUs; version f