What is CVE-2018-16723?

CVE-2018-16723 is a high-severity vulnerability in V-Secure Jingyun Antivirus, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2020-11-23.

How severe is CVE-2018-16723?

High severity. CVSS v3 base score is 7.8 out of 10.

Improper input validation in V-Secure Jingyun Antivirus

CVE-2018-16723

In Jingyun Antivirus v2.4.2.39, the driver file (ZySandbox.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x12364020.

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

Published 2020-11-23 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.003 (22.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

V-Secure Jingyun Antivirus — versions 2.4.2.39

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

github.com/bsauce/poc/tree/master/jingyun_antivirus_12364020 (Third Party Advisory)
www.cnvd.org.cn/flaw/show/CNVD-2018-19264 (Third Party Advisory)

Frequently asked questions

What is CVE-2018-16723?: CVE-2018-16723 is a high-severity vulnerability in V-Secure Jingyun Antivirus, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2020-11-23.
How severe is CVE-2018-16723?: High severity. CVSS v3 base score is 7.8 out of 10.