Win32k EPATHOBJ::pprFlattenRec local privilege escalation
CVE-2013-3660 is a local elevation-of-privilege vulnerability in the Win32k subsystem of Microsoft Windows, specifically in the kernel-mode driver win32k.sys. The flaw is in EPATHOBJ::pprFlattenRec, which does not properly initialize a pointer to the next object in a list. Under memory-pressure conditions, a local attacker can trigger excessive paged-memory consumption and then invoke FlattenPath repeatedly to obtain write access to the PATHRECORD chain. This corruption of kernel-managed path structures can be leveraged to alter kernel memory state and elevate privileges. Affected platforms listed in the provided content are Windows XP SP2/SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, and Windows Server 2012. The issue is also referred to as the "Win32k Read AV Vulnerability."
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Impact, mitigation & remediation
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Impact
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Mitigation
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Remediation
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Exploits
No valid public exploits. Mallory filtered out 3 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Affected products & vendors
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Windows local privilege escalation vulnerability targeted by FIN6 tooling to obtain kernel-level privileges.
Windows local privilege escalation vulnerability targeted by FIN6.
Windows local privilege escalation vulnerability targeted by FIN6 tooling to obtain kernel-level privileges.
A vulnerability explicitly mentioned as being exploited by a Dyre Banking Trojan variant to obtain system privileges, but not otherwise described in this content.
The version that knows your environment.
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.