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CVE-2025-24991 is an information disclosure vulnerability in Windows NTFS caused by an out-of-bounds read. Available analysis associates the flaw with NTFS processing in ntfs.sys, specifically the ReadRestartTable() function. By mounting a specially crafted virtual hard disk, an attacker can trigger NTFS to read memory outside the intended bounds and disclose portions of heap memory. Microsoft classified the issue as a local, authorized attack vector, and public reporting indicates it was exploited in the wild at the time of disclosure.
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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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Windows NTFS information disclosure vulnerability, apparently similar to the malicious-VHD NTFS issues, and reported as exploited in the wild.
An out-of-bounds read vulnerability in the Windows NTFS driver (ntfs.sys) that allows a local attacker to disclose kernel memory by mounting a specially crafted VHD file. The flaw is due to trusting an untrusted offset in the NTFS transaction log, leading to memory disclosure.
Windows NTFS out-of-bounds read vulnerability that can lead to unauthorized access to sensitive data and is actively exploited in the wild.
An NTFS out-of-bounds read information disclosure vulnerability exploitable when a user mounts a malicious VHD, with evidence of in-the-wild exploitation.
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.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.