What is CVE-2018-7546?

CVE-2018-7546 is a medium-severity vulnerability in Kingsoft Jinshan Pdf, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2018-07-18.

How severe is CVE-2018-7546?

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

Is CVE-2018-7546 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Kingsoft Jinshan Pdf

CVE-2018-7546

wpsmain.dll in Kingsoft WPS Office 2016 and Jinshan PDF 10.1.0.6621 allows remote attackers to cause a denial of service via a crafted pdf file.

Vulnerability class: Buffer Overflow

Published 2018-07-18 · 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: 0.014 (71.3th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Kingsoft Jinshan Pdf — versions 10.1.0.6621
Kingsoft Wps Office — versions 2016

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

References

www.cnvd.org.cn/flaw/show/CNVD-2018-04657 (Third Party Advisory)

Frequently asked questions

What is CVE-2018-7546?: CVE-2018-7546 is a medium-severity vulnerability in Kingsoft Jinshan Pdf, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2018-07-18.
How severe is CVE-2018-7546?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2018-7546 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.