What is CVE-2018-6217?

CVE-2018-6217 is a medium-severity vulnerability in Kingsoftstore Kingsoft Wps Office, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2018-01-25.

How severe is CVE-2018-6217?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Improper input validation in Kingsoftstore Kingsoft Wps Office

CVE-2018-6217

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2018-01-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (57.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Kingsoftstore Kingsoft Wps Office — versions 10.1.0.7106, 10.2.0.5978

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

github.com/Khwarezmia/WPS_POC/tree/master/wps_20180122 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-6217?: CVE-2018-6217 is a medium-severity vulnerability in Kingsoftstore Kingsoft Wps Office, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2018-01-25.
How severe is CVE-2018-6217?: Medium severity. CVSS v3 base score is 5.5 out of 10.