Published:2013/03/01  Last Updated:2013/03/01

Kingsoft Writer vulnerable to buffer overflow


Kingsoft Writer contains a buffer overflow vulnerability.

Products Affected

  • Kingsoft Writer 2007
  • Kingsoft Writer 2010 version 2723 and earlier

Note that KINGSOFT Office for Android is not affected by this vulnerability.


Kingsoft Writer is a software to edit document files. Kingsoft Writer contains a buffer overflow vulnerability.


When opening a specially crafted document, an arbitrary code may be executed.


Update the software
Update to the latest version according to the information provided by the developer.

According to the developer, users can update from Kingsoft Writer 2007 to Kingsoft Writer 2010 by the online update.

Vendor Status

Vendor Status Last Update Vendor Notes
Kingsoft Corporation / Kingsoft Japan Inc. Vulnerable 2013/03/01 Kingsoft Corporation / Kingsoft Japan Inc. website


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2013.03.01

Measures Conditions Severity
Access Required can be attacked over the Internet using packets
  • High
Authentication anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Mid
Exploit Complexity some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls)
  • Mid-High

Description of each analysis measures


Yuji Ukai of Fourteenforty Research Institute, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2013-0710
JVN iPedia JVNDB-2013-000016