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CVE-2024-21345 is an elevation of privilege vulnerability in the Windows kernel. It was addressed by Microsoft in the February 2024 Patch Tuesday release and is rated Important with a CVSS score of 8.8. Available information identifies the affected component only at the Windows Kernel level and does not provide public detail on the specific vulnerable function, root cause, or exploitation primitive. As a kernel-level local privilege escalation issue, successful exploitation would allow an attacker who already has code execution on a target Windows system to elevate privileges within the operating system.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a Visual Studio C project implementing a proof-of-concept (POC) exploit for a race condition in the Windows kernel's NtQueryInformationThread syscall, specifically when querying ThreadTebInformation. The main code file, 'teb_nt_poc.c', sets up a race between two threads: one rapidly toggles fields in a THREAD_TEB_INFORMATION structure, while the other repeatedly calls NtQueryInformationThread. The goal is to exploit a potential race condition that could allow reading or writing to arbitrary kernel memory addresses, which may lead to privilege escalation or information disclosure. The project includes standard Visual Studio solution and project files for building the exploit. No network or remote endpoints are present; the exploit is purely local and targets the Windows operating system.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A local privilege escalation vulnerability in Microsoft Windows, allowing attackers to gain elevated privileges on a compromised system.
A Windows Kernel elevation-of-privilege vulnerability that can be used post-compromise to elevate privileges to SYSTEM.
An elevation of privilege vulnerability in the Windows Kernel.
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.