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Status published
Medium
CVE-2021-26264
Emerson DeltaV Missing Authentication for Critical Function
Vulnerability Description
A specially crafted script could cause the DeltaV Distributed Control System Controllers (All Versions) to restart and cause a denial-of-service condition.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Sharon Brizinov of Claroty reported these vulnerabilities to Emerson.
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Affected Vendor
emerson
View all reports →Affected Software
deltav workstation, deltav distributed control system
Vulnerable Versions:
Unknown
Timeline
Official Publish:
January 28th, 2022
Last Modified:
April 17th, 2025
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.