CVE-2013-3660

HighActively exploited (CISA KEV)

Description

The EPATHOBJ::pprFlattenRec function in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, and Windows Server 2012 does not properly initialize a pointer for the next object in a certain list, which allows local users to obtain write access to the PATHRECORD chain, and consequently gain privileges, by triggering excessive consumption of paged memory and then making many FlattenPath function calls, aka "Win32k Read AV Vulnerability."

SeverityHigh
CVSS7.8
Exploit probability—
ProductMicrosoft Win32k
PublishedMay 24, 2013
First seenMay 24, 2013
Added to KEVMar 28, 2022

How to fix

CISA required action

Apply updates per vendor instructions.

CISA due date: Apr 18, 2022

Affected products

ProductAffected versionsFixed in
microsoft windows_7No range specified—
microsoft windows_8No range specified—
microsoft windows_rtNo range specified—
microsoft windows_server_2003No range specified—
microsoft windows_server_2008No range specified, r2—
microsoft windows_server_2012No range specified—
microsoft windows_vistaNo range specified—
microsoft windows_xpNo range specified—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.