How severe is CVE-2018-6217?

CVE-2018-6217 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-6217 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6217?

CVE-2018-6217 primarily affects Kingsoftstore Kingsoft Wps Office. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-6217?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-6217 published?

CVE-2018-6217 was published on 2018-01-25 and last updated on 2026-06-17.

CVE-2018-6217

CVE-2018-6217 is a medium-severity vulnerability in Kingsoftstore Kingsoft Wps Office with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Kingsoftstore Kingsoft Wps Office
Published: 2018-01-25
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2018-6217?: CVE-2018-6217 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-6217 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6217?: CVE-2018-6217 primarily affects Kingsoftstore Kingsoft Wps Office. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-6217?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-6217 published?: CVE-2018-6217 was published on 2018-01-25 and last updated on 2026-06-17.

References

https://github.com/Khwarezmia/WPS_POC/tree/master/wps_20180122

Affected products (2)

cpe:2.3:a:kingsoftstore:kingsoft_wps_office:10.1.0.7106:*:*:*:*:*:*:*
cpe:2.3:a:kingsoftstore:kingsoft_wps_office:10.2.0.5978:*:*:*:*:*:*:*

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