CVE-2021-27430

GE UR family hardcoded credentials

Published Mar 23, 2022 CVSS 3.1 · 8.4 High EPSS < 1% KEV · Not listed
Description
GE UR bootloader binary Version 7.00, 7.01 and 7.02 included unused hardcoded credentials. Additionally, a user with physical access to the UR IED can interrupt the boot sequence by rebooting the UR.

Remediation

Vendor Solution

GE strongly recommends users with impacted firmware versions update their UR devices to UR firmware Version 8.10, or greater to resolve these vulnerabilities. GE provides additional mitigations and information about these vulnerabilities in GE Publication Number: GES-2021-004 (login required).


Vendor Workaround

GE recommends protecting UR IED by using network defense-in-depth practices. This includes, but is not limited to, placing UR IED inside the control system network security perimeter, and having access controls, monitoring (such as an Intrusion Detection System), and other mitigating technologies in place. GE recommends users refer to the UR Deployment guide for secure configuration of UR IED and system.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-14184 GE UR bootloader binary Version 7.00, 7.01 and 7.02 included unused hardcoded credentials. Additionally, a user with physical access to the UR IED can interrupt the boot sequence by rebooting the UR.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Apr 16, 2025, 5:59 PM
Reserved
Feb 19, 2021, 12:00 AM
Status
Modified
Published
Mar 23, 2022, 8:15 PM
Modified
Jun 17, 2026, 3:44 AM