The kernel mode driver kwatch3 of KINGSOFT Internet Security 9 Plus Version 2010.06.23.247 fails to properly handle crafted inputs, leading to stack-based buffer overflow.

The installer of WPS Office for Windows versions prior to v11.2.0.10258 fails to configure properly the ACL for the directory where the service program is installed.

GdiDrawHoriLineIAlt in Kingsoft WPS Office before 11.2.0.9403 allows remote heap corruption via a crafted PLTE chunk in PNG data within a Word document. This is related to QBrush::setMatrix in gui/painting/qbrush.cpp in Qt 4.x.

wpsmain.dll in Kingsoft WPS Office 2016 and Jinshan PDF 10.1.0.6621 allows remote attackers to cause a denial of service via a crafted pdf file.

A NULL pointer dereference bug in the function ObReferenceObjectByHandle in the Kingsoft Internet Security 9+ kernel driver KWatch3.sys allows local non-privileged users to crash the system via IOCTL 0x80030030.

Kingsoft WPS Office Free 10.2.0.5978 allows local users to gain privileges or cause a denial of service by impersonating all the pipes through a use of \\.\pipe\WPSCloudSvr\WpsCloudSvr -- an "insecurely created named pipe." Ensures full access to Everyone users group.

The WStr::_alloc_iostr_data() function in kso.dll in Kingsoft WPS Office 10.1.0.7106 and 10.2.0.5978 allows remote attackers to cause a denial of service (application crash) via a crafted (a) web page, (b) office document, or (c) .rtf file.

Stack-based buffer overflow in wpsio.dll in Kingsoft WPS Office 2012 possibly 8.1.0.3238 allows remote attackers to execute arbitrary code via a long BSTR string.

Kingsoft KDrive Personal before 1.21.0.1880 on Windows does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Stack-based buffer overflow in Kingsoft Writer 2012 8.1.0.3030, as used in Kingsoft Office 2013 before 9.1.0.4256, allows remote attackers to execute arbitrary code via a long font name in a WPS file.