major vulnerability· requires attention

Affects Emerson Ovation ICS widely deployed in industrial environments; unauthenticated access can alter controllers and disrupt critical processes.

OT/ICS

CVE-2022-29966

9.3

Critical

EPSS n/a

Unauthenticated Ovation protocols allow controller config changes or DoS.

exploited

No known exploitation not in CISA KEV as of our last sync

fix

Fixed in 3.8.0 Feature Pack 3

likelihood

No EPSS score yet

Published 3 Nov 2026Analysed here 5 Nov 2026CVSS scored by the publisher (CNA)

do firstUpgrade to a fixed release: 3.8.0 Feature Pack 3.

common questions

Is CVE-2022-29966 being exploited?

Not confirmed. CVE-2022-29966 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.

How severe is CVE-2022-29966?

CVE-2022-29966 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2022-29966?

Not known from our data. No patch reference has been recorded for CVE-2022-29966, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.

What does CVE-2022-29966 affect?

CVE-2022-29966 affects Emerson Ovation controllers, Ovation protocol interfaces, Ovation operator stations/HMIs, ICS networks hosting Ovation. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2022-29966?

Isolate Ovation systems, apply vendor mitigations, restrict network access, monitor logs, patch when available

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary

technical analysis

affected

Emerson Ovation controllersOvation protocol interfacesOvation operator stations/HMIsICS networks hosting Ovation

impact

Remote unauthenticated actor can change controller configuration or cause denial-of-service, disrupting industrial processes and safety systems.

action required

Immediate action required

affected versions

Emerson Ovation

affected<= Version 3.8.0 Feature Pack 1

vendor says fixed in3.8.0 Feature Pack 3

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

timeline

3 Nov 2026Published
3 Nov 2026CVE record last updated · same day later
5 Nov 2026Analysed by vulneraibility.com · 1 day later

how to fix

Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.

references

NVD CVE.org CVE Details Source

2 references in the CVE record: 2 links

Linkcisa.gov /news-events/ics-advisories/icsa-24-158-02
Linkgithub.com /cisagov/CSAF/blob/develop/csaf_files/OT/white/2024/icsa-24-158-02.json

sources

CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
NVD: CVSS and CPE data
FIRST EPSS: exploit probability and percentile
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.

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