What is CVE-2020-20490?

CVE-2020-20490 is a high-severity vulnerability in Libiec Iccp Mod Project, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2021-08-31.

How severe is CVE-2020-20490?

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

Buffer overflow in Libiec Iccp Mod Project

CVE-2020-20490

A heap buffer-overflow in the client_example1.c component of libiec_iccp_mod v1.5 leads to a denial of service (DOS).

Vulnerability class: Buffer Overflow

Published 2021-08-31 · 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:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.011 (63.6th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Libiec Iccp Mod Project — versions 1.5

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/fcovatti/libiec_iccp_mod/issues/5 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-20490?: CVE-2020-20490 is a high-severity vulnerability in Libiec Iccp Mod Project, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2021-08-31.
How severe is CVE-2020-20490?: High severity. CVSS v3 base score is 7.5 out of 10.