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CVE-2025-54110 is an elevation-of-privilege vulnerability in the Windows Kernel caused by an integer overflow or wraparound condition. The flaw allows a locally authorized attacker to trigger incorrect arithmetic handling in kernel-mode code, which can lead to unsafe memory or state manipulation and ultimately privilege escalation. Publicly available context identifies the issue only at a high level and does not provide the specific vulnerable function or code path.
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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.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a proof-of-concept (PoC) exploit for CVE-2025-54110, a Windows kernel integer overflow vulnerability in the NtQueryDirectoryObject system call. The repository consists of two files: a C source file implementing the exploit logic and a detailed README.md providing technical background, analysis methodology, and legal disclaimers. The exploit code attempts to trigger a kernel access violation (potentially causing a BSOD) by making crafted calls to NtQueryDirectoryObject with specific buffer sizes and memory addresses, targeting several kernel object directories (\BaseNamedObjects, \KernelObjects, \Sessions, \Windows). The PoC is crash-only and does not provide privilege escalation or code execution. The README offers in-depth analysis of the vulnerability, patch diffing workflow, and responsible disclosure guidance. The exploit is intended for educational and research purposes only.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Windows Kernel elevation of privilege vulnerability.
A Windows Kernel elevation of privilege vulnerability assessed by Microsoft as more likely to be exploited.
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.