CVE-2022-29966

Emerson Ovation Missing Authentication for Critical Functionality

Published Nov 3, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
Emerson Ovation has several protocols that have no authentication, which could allow an attacker to change controller configuration or cause a denial-of-service condition.

Remediation

Vendor Solution

Emerson recommends the following: * Upgrade to the currently available release of Ovation 3.8.0 Feature Pack 3 for remediation of many of the identified vulnerabilities. * Users are advised to consider the use of OCR3000 controllers, which offer an extra layer of protection that is not available to older controller models. * Deploy and configure Ovation systems and related components as described in the Cybersecurity for Ovation Systems manual (OVREF1000). Ovation Users' Group Website (User Manuals | Reference Manuals) https://www.ovationusers.com/ (login required) * Users with questions or concerns regarding the impact of these vulnerabilities on Ovation should contact the Ovation-CERT by email or phone (1-800-445-9723, option 3).

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Emerson Ovation has several protocols that have no authentication, which could allow an attacker to change controller configuration or cause a denial-of-service condition.
Title Emerson Ovation Missing Authentication for Critical Functionality
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Nov 6, 2026, 7:07 PM
Reserved
Apr 29, 2022, 10:22 PM
Status
Awaiting Analysis
Published
Nov 3, 2026, 11:17 PM
Modified
Nov 12, 2026, 10:09 PM