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CVE-2018-6390 Details

Description

The WStr::assign function in kso.dll in Kingsoft WPS Office 10.1.0.7106 and 10.2.0.5978 does not validate the size of the source memory block before an _copy call, which allows remote attackers to cause a denial of service (access violation and application crash) via a crafted (a) web page, (b) office document, or (c) .rtf file.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/Khwarezmia/WPS_POC/tree/master/wps_20180129	CVE	ExploitThird Party Advisory
https://github.com/Khwarezmia/WPS_POC/tree/master/wps_20180129	[email protected]	ExploitThird Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer	[email protected]

Affected Products

Product	Versions
wps wps office	10.1.0.7106 10.2.0.5978
CPE cpe:2.3:a:wps:wps_office:10.1.0.7106:::::::* cpe:2.3:a:wps:wps_office:10.2.0.5978:::::::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jan 28, 2021	Reanalysis	[email protected]
Feb 15, 2018	Initial Analysis	[email protected]