What is CVE-2020-7233?

CVE-2020-7233 is a critical-severity vulnerability in Kmccontrols Bac-A1616bc, classified under Insufficiently Protected Credentials. CVSS score: 9.8/10. Published 2020-01-19.

How severe is CVE-2020-7233?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Kmccontrols Bac-A1616bc

CVE-2020-7233

KMS Controls BAC-A1616BC BACnet devices have a cleartext password of snowman in the BACKDOOR_NAME variable in the BC_Logon.swf file.

Published 2020-01-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (75.7th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

sku11army.blogspot.com/2020/01/kms-controls-backdoor-in-bacnet.html (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-7233?: CVE-2020-7233 is a critical-severity vulnerability in Kmccontrols Bac-A1616bc, classified under Insufficiently Protected Credentials. CVSS score: 9.8/10. Published 2020-01-19.
How severe is CVE-2020-7233?: Critical severity. CVSS v3 base score is 9.8 out of 10.