TI-2018-04706 Aliases CVE-2018-6390 GHSA-7p8m-6xxh-cwjp

The WStr::assign function in kso.dll in Kingsoft WPS Office 10.1.0.7106 and 10.2.0.5978…

LOW 31CWE-119Published 2018-01-29 · Updated 2024-09-17

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.01074 65th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:wps:wps_office:10.1.0.7106:::::::*	10.1.0.7106	Vulnerable	WPS
cpe:2.3:a:wps:wps_office:10.2.0.5978:::::::*	10.2.0.5978	Vulnerable	WPS

cpe:2.3:a:wps:wps_office:10.1.0.7106:*:*:*:*:*:*:* Versions 10.1.0.7106 Vulnerable ·WPS
cpe:2.3:a:wps:wps_office:10.2.0.5978:*:*:*:*:*:*:* Versions 10.2.0.5978 Vulnerable ·WPS

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-6390
2026-10-03 Alias added: GHSA-7p8m-6xxh-cwjp

References

Exploit 1

https://github.com/Khwarezmia/WPS_POC/tree/master/wps_20180129

TI-2022-08738 wpsupdater.exe in Kingsoft WPS Office through 11.2.0.10382 allows remote code execution… CVSS 3.1CRITICAL 9.8
TI-2021-17463 Use after free in WPS Office CVSS 3.1HIGH 7.8
TI-2014-01800 cn.wps.moffice.common.beans.print.CloudPrintWebView in Kingsoft Office 5.3.1, as used in… CVSS 3.1HIGH 8.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences