• Advisory Details Oracle VirtualBox BusLogic Uninitialized Memory Information Disclosure Vulnerability ZDI-26-101ZDI-CAN-28080 This vulnerability allows local attackers to disclose sensitive information on affected installations of Oracle VirtualBox. • An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. • The specific flaw exists within the BusLogic module. • The issue results from the lack of proper initialization of memory prior to accessing it. • An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the hypervisor. • 2025-10-09 - Vulnerability reported to vendor 2026-02-13 - Coordinated public release of advisory 2026-02-13 - Advisory Updated General Inquiries Find us on X Find us on Mastodon Media Inquiries Sensitive Email Communications Our Mission TrendAI TippingPoint IPS Process Researcher Rewards FAQS Privacy Published Advisories Upcoming Advisories RSS Feeds

Advisory Details Oracle VirtualBox LsiLogic Uninitialized Memory Information Disclosure Vulnerability ZDI-26-100ZDI-CAN-28079 This vulnerability allows local attackers to disclose sensitive information on affected installations of Oracle VirtualBox.

Article Summaries:

  • CVE ID | CVE-2026-21963 | CVSS SCORE | 6.0, AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N | AFFECTED VENDORS | Oracle | AFFECTED PRODUCTS | VirtualBox | VULNERABILITY DETAILS | This vulnerability allows local attackers to disclose sensitive information on affected installations of Oracle VirtualBox. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the BusLogic module. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage
  • CVE ID | CVE-2026-21985 | CVSS SCORE | 6.0, AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N | AFFECTED VENDORS | Oracle | AFFECTED PRODUCTS | VirtualBox | VULNERABILITY DETAILS | This vulnerability allows local attackers to disclose sensitive information on affected installations of Oracle VirtualBox. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the LsiLogic module. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage

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