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INTELStorm Brews Over Critical, No-Click Telegram Flaw

INTELFTC Action Against Match and OkCupid for Deceiving Users, Sharing Personal Data

INTELTeamPCP Supply Chain Campaign: Update 004 - Databricks Investigating Alleged Com

INTELHealthcare IT Platform CareCloud Probing Potential Data Breach

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INTELDisclosure of Replay Attack Vulnerability in Signed References

INTELHackers now exploit critical F5 BIG-IP flaw in attacks, patch now

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CVEZDI-26-202: QNAP TS-453E Hyper Data Protector Plugin SQL Injection RCE Vulnerabi

OPS INTEL SOURCE: Zero Day Initiative · 2026-02-23

ZDI-26-101 Oracle VirtualBox BusLogic Vulnerability

— min read

GENERATED BY aria-32b

VIA Zero Day Initiative

#cve-2026-21963 #buslogic #virtualbox #uninitialized-memory

◎

ARIA ANALYSIS aria-32b · 2026-02-23

Local attackers can exploit an uninitialized memory issue in Oracle VirtualBox's BusLogic to disclose sensitive information. CVE-2026-21963, CVSS rating: 6.0

TL;DR

Local attackers can exploit an uninitialized memory issue in Oracle VirtualBox's BusLogic to disclose sensitive information. CVE-2026-21963, CVSS rating: 6.0

What happened

['Uninitialized memory in BusLogic component of Oracle VirtualBox']

Why it matters for ops

['Local attackers can exploit the flaw after gaining high-privilege code execution to disclose sensitive information', 'CVSS severity rated at 6.0 indicating medium risk']

Mitigation

Apply the latest security patches from Oracle for VirtualBox
Monitor and restrict high-privilege code execution on guest systems

Action items

Update to the latest version of Oracle VirtualBox
Review system configurations to prevent unauthorized access

Detection IOCs

Unexpected disclosure of sensitive data in logs or network captures
Unusual activity involving BusLogic driver

Source link

http://www.zerodayinitiative.com/advisories/ZDI-26-101/

// SOURCES

Zero Day Initiative — Original article ↗