What is CVE-2020-18329?

CVE-2020-18329 is a high-severity vulnerability in Carel Pcoweb Card Bios, classified under Improper Preservation of Permissions. CVSS score: 7.5/10. Published 2023-01-26.

How severe is CVE-2020-18329?

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

Vulnerability in Carel Pcoweb Card Bios

CVE-2020-18329

An issue was discovered in Rehau devices that use a pCOWeb card BIOS v6.27, BOOT v5.00, web version v2.2, allows attackers to gain full unauthenticated access to the configuration and service interface.

Published 2023-01-26 · 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: 0.009 (59.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Carel Pcoweb Card Bios — versions 6.27
Carel Pcoweb Card Boot — versions 5.00
Carel Pcoweb Card Web — versions 2.2

Weakness classification (CWE)

CWE-281 — Improper Preservation of Permissions

References

medium.com/@SergiuSechel/insecure-permissions-in-rehau-group-unlimited-polymer-…
github.com/cybertoxin/CVEs/blob/main/CVE_2020_18329.md (Third Party Advisory)

Frequently asked questions

What is CVE-2020-18329?: CVE-2020-18329 is a high-severity vulnerability in Carel Pcoweb Card Bios, classified under Improper Preservation of Permissions. CVSS score: 7.5/10. Published 2023-01-26.
How severe is CVE-2020-18329?: High severity. CVSS v3 base score is 7.5 out of 10.