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CVE-2010-4398 is a stack-based buffer overflow involving RtlQueryRegistryValues in the Microsoft Windows kernel subsystem. A crafted REG_BINARY registry value associated with the system-default end-user-defined-character font allows local users to elevate privileges and bypass User Account Control. Affected releases include Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2 and R2, and Windows 7. The underlying unsafe registry-query pattern uses RTL_QUERY_REGISTRY_DIRECT without adequate type validation. An incomplete fix left related administrator-reachable driver code paths vulnerable on fully updated Windows 7 and Windows Server 2008 R2, enabling registry-backed kernel shellcode execution during boot.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A specific vulnerability (CVE-2010-4398) associated with exploitation or targeting by the Cozy Bear (APT29) threat actor.
A specific vulnerability (CVE-2010-4398) associated with exploitation or targeting by the Cozy Bear (APT29) threat actor.
A Windows privilege escalation vulnerability exploited by Carberp and FIN6 and targeted by CosmicDuke, allowing local users to obtain kernel-level privileges.
An incompletely fixed Windows design flaw involving insecure use of RtlQueryRegistryValues that allows attackers with administrator privileges to hide kernel shellcode in the registry and execute it at boot on older Windows versions, including fully updated Windows 7/Windows Server 2008 R2.
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.