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CVE-2025-24063 is a heap-based buffer overflow in the Windows Kernel/Kernel Streaming Service Driver. Insufficient validation and bounds checking of user-supplied IOCTL input to kernel-mode drivers can cause a crafted request to exceed an allocated heap buffer, corrupt adjacent kernel memory, and potentially overwrite critical kernel structures or function pointers. The flaw allows a locally authorized attacker to elevate privileges.
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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.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Kernel Streaming Service driver elevation of privilege vulnerability reported as exploited.
An elevation of privilege vulnerability in the Kernel Streaming Service Driver that Microsoft assesses as more likely to be exploited within 30 days.
An elevation of privilege vulnerability in the Kernel Streaming Service Driver.
A Kernel Streaming Service Driver elevation of privilege vulnerability assessed as exploitation more likely.
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.