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CVE-2015-2546 is a use-after-free vulnerability in the Microsoft Windows Win32k kernel-mode driver, associated with xxxSendMessage and the tagPOPUPMENU object during User Mode Callback handling. A local user can exploit it through a crafted application to elevate privileges. Affected platforms include Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8 and 8.1, Windows Server 2012 and 2012 R2, Windows RT and RT 8.1, and Windows 10. Platinum used the vulnerability after exploiting CVE-2015-2545 in Microsoft Office to elevate execution to SYSTEM. Exploits were also identified in Ursnif and Buhtrap malware.
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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.
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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 Win32k memory corruption vulnerability used by Conti and its affiliates for privilege escalation. The article identifies the oldest listed flaw as already patched.
A Windows kernel local privilege escalation vulnerability caused by a use-after-free in xxxSendMessage/tagPOPUPMENU.
A kernel-mode use-after-free vulnerability used for privilege escalation to SYSTEM after initial compromise via Microsoft Word.
An APT-used zero-day vulnerability referenced as part of an exploit chain involving PostScript-embedded Microsoft Office documents and Win32k/User Mode Callback privilege escalation.
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.