CVE-2021-33014

KUKA KR C4 - Use of Hard-Coded Credentials

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Published May 26, 2022 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Description

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

KUKA

KR C4

affected

Version	Status	Constraints
`All`	affected	< v8.7

KUKA

KSS (KUKA.SystemSoftware)

affected

Version	Status	Constraints
`All`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:kuka:kr_c4_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:kuka:kr_c4:-:*:*:*:*:*:*:*

Configuration 2 [-]

cpe:2.3:o:kuka:kss:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-19735	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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.917% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://www.cisa.gov/uscert/ics/advisories/icsa-21-208-01

History

Apr 16, 2025 6:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Subscriptions

Kuka Kr C4 Kr C4 Firmware Kss

Weaknesses

CWE-798

Sources

CVE record Updated: Apr 16, 2025, 5:53 PM

Status: PUBLISHED
Assigner: icscert
Published: May 26, 2022, 4:33 PM
Updated: Apr 16, 2025, 5:53 PM
Reserved: May 13, 2021, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 3, 2024, 11:42 PM

Updated: Aug 3, 2024, 11:42 PM

NVD Updated: Jun 17, 2026, 3:54 AM

Status: Modified
Published: May 26, 2022, 5:15 PM
Modified: Jun 17, 2026, 3:54 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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