CVE-2021-26264

Emerson DeltaV Missing Authentication for Critical Function

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Published Jan 28, 2022 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed

Description

A specially crafted script could cause the DeltaV Distributed Control System Controllers (All Versions) to restart and cause a denial-of-service condition.

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

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:emerson:deltav_workstation:-:::::::*
	cpe:2.3:o:emerson:deltav_distributed_control_system:-:::::::*

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-2021-13081	A specially crafted script could cause the DeltaV Distributed Control System Controllers (All Versions) to restart and cause a denial-of-service condition.

Metrics

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Complete

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.187% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-04

History

Apr 17, 2025 4:15 PM Scoring metrics updated View changes

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

Subscriptions

Emerson Deltav Distributed Control System Deltav Workstation

Weaknesses

CWE-306

Sources

CVE record Updated: Apr 17, 2025, 3:51 PM

Status: PUBLISHED
Assigner: icscert
Published: Jan 28, 2022, 7:09 PM
Updated: Apr 17, 2025, 3:51 PM
Reserved: Dec 16, 2021, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 3, 2024, 8:19 PM

Updated: Aug 3, 2024, 8:19 PM

NVD Updated: Jun 17, 2026, 3:43 AM

Status: Modified
Published: Jan 28, 2022, 8:15 PM
Modified: Jun 17, 2026, 3:43 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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