What is CVE-2020-16233?

CVE-2020-16233 is a high-severity vulnerability in Wibu Codemeter, classified under Improper Resource Shutdown or Release. CVSS score: 7.5/10. Published 2020-09-16.

How severe is CVE-2020-16233?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Wibu Codemeter

CVE-2020-16233

An attacker could send a specially crafted packet that could have CodeMeter (All versions prior to 7.10) send back packets containing data from the heap.

Published 2020-09-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.018 (78.1th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Wibu Codemeter
Codemeter — versions All versions prior to 7.10

Weakness classification (CWE)

CWE-404 — Improper Resource Shutdown or Release

References

us-cert.cisa.gov/ics/advisories/icsa-20-203-01 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2020-16233?: CVE-2020-16233 is a high-severity vulnerability in Wibu Codemeter, classified under Improper Resource Shutdown or Release. CVSS score: 7.5/10. Published 2020-09-16.
How severe is CVE-2020-16233?: High severity. CVSS v3 base score is 7.5 out of 10.