Buffer overflow in Kingsoft Wps_office

CVE-2020-25291

GdiDrawHoriLineIAlt in Kingsoft WPS Office before 11.2.0.9403 allows remote heap corruption via a crafted PLTE chunk in PNG data within a Word document. This is related to QBrush::setMatrix in gui/painting/qbrush.cpp in Qt 4.x.

Vulnerability class: Buffer Overflow

EPSS: 0.016 (73.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-25291?
CVE-2020-25291 is a high-severity vulnerability in Kingsoft Wps_office, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2020-09-13.
How severe is CVE-2020-25291?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2020-25291 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.