How severe is CVE-2020-3925?

High severity. CVSS v3 base score is 8.3 out of 10.

Vulnerability in Changing Servisign Windows Versions

CVE-2020-3925

A Remote Code Execution(RCE) vulnerability exists in some designated applications in ServiSign security plugin, as long as the interface is captured, attackers are able to launch RCE and executes arbitrary command on target system via malicious crafted scripts.

Published 2020-02-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.028 (85.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000

Affected products

Changing Servisign Windows Versions — versions 0
Changingtec Servisign
Microsoft Windows

References

tvn.twcert.org.tw/taiwanvn/TVN-201910005 (Third Party Advisory)
www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce (Third Party Advisory)

Frequently asked questions

What is CVE-2020-3925?: CVE-2020-3925 is a high-severity vulnerability in Changing Servisign Windows Versions. CVSS score: 8.3/10. Published 2020-02-03.
How severe is CVE-2020-3925?: High severity. CVSS v3 base score is 8.3 out of 10.