AnalysisPublished 22 Sep 2026

Arbitrary function execution in windows kernel context bypassing HVCI and CET given read and write primitives

Source Reddit Cybersecurity

Discussion

This report discusses a technique for arbitrary function execution in the Windows kernel context that bypasses Hypervisor-protected Code Integrity (HVCI) and Control-flow Enforcement Technology (CET), assuming the attacker has read and write primitives. The information is sourced from a Medium article shared on Reddit. No specific affected Windows versions or vendor advisories are provided. There is no indication of active exploitation in the wild or available patches.

r/cybersecurity (opens in a new tab)u/Fun-Humor76470 points0 comments

https://medium.com/@vulturev1/the-bool-party-you-will-never-forget-a-binary-exploitation-technique-for-arbitrary-function-4d99d45e61cb

This is my small contribution to the cybersecurity community. I would be grateful for reviews and suggestions.

Links cited in the discussion

https://medium.com/@vulturev1/the-bool-party-you-will-never-forget-a-binary-exploitation-technique-for-arbitrary-function-4d99d45e61cb

Also discussed in r/ExploitDev

Impact

If successfully leveraged, this technique could allow an attacker with existing read and write access to execute arbitrary functions in kernel mode, potentially leading to privilege escalation or bypass of kernel-level security features such as HVCI and CET. No evidence of active exploitation or widespread impact is indicated.

Defensive guidance

Since this technique requires existing read and write primitives, securing systems against initial compromise and maintaining up-to-date security patches remain critical.

Summary

The described technique enables arbitrary function execution within the Windows kernel context by circumventing HVCI and CET protections, given that the attacker already possesses read and write capabilities. This method represents a binary exploitation approach that could potentially escalate privileges or execute code at a high privilege level. However, the report does not specify affected Windows versions, detailed technical mechanisms, or mitigation steps.

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Discussion

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AI analysisMachine-generated, updated 22 Sep 2026, 16:02 UTC

Technical details

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