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CVE-2015-0057 is a local elevation-of-privilege vulnerability in the Windows kernel-mode driver win32k.sys, affecting multiple Windows client and server versions including Windows Server 2003 SP2, Vista SP2, Server 2008 SP2/R2 SP1, Windows 7 SP1, Windows 8/8.1, Server 2012/2012 R2, and Windows RT/RT 8.1. Microsoft describes the issue as improper handling of objects in memory by Win32k.sys. Supporting technical analysis further characterizes it as a use-after-free condition in the Win32K User Mode Callback mechanism. Exploitation involves triggering the vulnerable callback/state path so that freed desktop-heap objects such as tagPROPLIST can be reused in a controlled way, enabling corruption of object fields and subsequent relative heap memory access that can be transformed into arbitrary kernel memory read/write. The vulnerability is reachable after local logon via a crafted application and was later observed in the wild, including use by a Dyre banking trojan variant to obtain SYSTEM privileges.
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No valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.
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2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An elevation of privilege vulnerability in the Windows kernel-mode driver (Win32k.sys) caused by improper handling of objects in memory, allowing elevated privileges and arbitrary kernel memory read.
A Win32k User Mode Callback use-after-free local privilege escalation vulnerability in Windows that can be exploited to gain arbitrary kernel memory read/write and obtain SYSTEM privileges.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.