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CVE-2025-47159 is an elevation-of-privilege vulnerability in Windows Virtualization-Based Security (VBS) Enclave caused by a protection mechanism failure. Available reporting describes the issue as involving improper memory boundary checks within the VBS enclave protection model, enabling bypass of hypervisor-enforced isolation guarantees. An authorized local attacker with low privileges can exploit the flaw without user interaction to elevate privileges on the affected system. The vulnerability affects the VBS enclave security boundary rather than a remote-facing service, and successful exploitation can result in escalation to SYSTEM. Some reporting further suggests exploitation may involve crafted enclave-related operations and abuse during enclave initialization, but those implementation details are not sufficiently authoritative to state conclusively.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A local privilege escalation vulnerability in Windows Virtualization-Based Security (VBS) caused by a protection mechanism failure and improper memory boundary checks, allowing attackers to bypass hypervisor-enforced isolation and potentially gain kernel-level access.
A Microsoft Windows Virtualization-Based Security (VBS) Enclave elevation of privilege vulnerability caused by a protection mechanism failure that allows a local authorized attacker with low privileges to escalate to SYSTEM.
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.