What is CVE-2021-33014?

CVE-2021-33014 is a high-severity vulnerability in Kuka Kr C4, classified under Use of Hard-coded Credentials. CVSS score: 8.8/10. Published 2022-05-26.

How severe is CVE-2021-33014?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Kuka Kr C4

CVE-2021-33014

An attacker can gain VxWorks Shell after login due to hard-coded credentials on a KUKA KR C4 control software for versions prior to 8.7 or any product running KSS.

Published 2022-05-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (58.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.2% 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

Kuka Kr C4 — versions All
Kuka Kr C4
Kuka Kr C4 Firmware
Kuka Kss
Kuka Kss (Kuka.systemsoftware) — versions All

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

www.cisa.gov/uscert/ics/advisories/icsa-21-208-01 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2021-33014?: CVE-2021-33014 is a high-severity vulnerability in Kuka Kr C4, classified under Use of Hard-coded Credentials. CVSS score: 8.8/10. Published 2022-05-26.
How severe is CVE-2021-33014?: High severity. CVSS v3 base score is 8.8 out of 10.