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CVE-2026-71135 is an easily exploitable local denial-of-service vulnerability in the Core component of Oracle VM VirtualBox. The affected supported version is 7.2.14. Exploitation requires a high-privileged attacker with logon access to the infrastructure where Oracle VM VirtualBox executes. Successful exploitation allows the attacker to compromise Oracle VM VirtualBox by triggering a hang or a frequently repeatable crash, resulting in complete denial of service. Oracle notes a scope change, indicating that although the flaw resides in VirtualBox, exploitation may significantly affect additional products in the surrounding environment.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability affecting Oracle VM VirtualBox referenced in the August 2026 CPU/Nessus plugin.
A specific vulnerability tracked as CVE-2026-71135 affecting Ubuntu Linux systems with VirtualBox present, described here as an unpatched issue with local attack vector and high availability impact.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.