CVE-2022-29957

highpriority · track · 31OT risk · elevatedEPSS 0.002 · 12 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.22% (12th) EPSS

CVSS 7.8 · high

Is it mine?

13 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-28

The Emerson DeltaV Distributed Control System (DCS) through 2022-04-29 mishandles authentication. It utilizes several proprietary protocols for a wide variety of functionality. These protocols include Firmware upgrade (18508/TCP, 18518/TCP); Plug-and-Play (18510/UDP); Hawk services (18507/UDP); Management (18519/TCP); Cold restart (18512/UDP); SIS communications (12345/TCP); and Wireless Gateway Protocol (18515/UDP). None of these protocols have any authentication features, allowing any attacker capable of communicating with the ports in question to invoke (a subset of) desired functionality.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationDeltaV CIOC/EIOC/WIOC IO cardscisa_csaf_ot
Emerson corrected the Firmware image verification vulnerability in Version 14.3 and mitigated it in all other versions. Please see the Emerson Guardian Support Portal (login required) for more information.
https://guardian.emerson.com/Login/
MitigationDeltaV M-seriescisa_csaf_ot
Emerson corrected the Firmware image verification vulnerability in Version 14.3 and mitigated it in all other versions. Please see the Emerson Guardian Support Portal (login required) for more information.
https://guardian.emerson.com/Login/
MitigationDeltaV P-seriescisa_csaf_ot
Emerson corrected the Firmware image verification vulnerability in Version 14.3 and mitigated it in all other versions. Please see the Emerson Guardian Support Portal (login required) for more information.
https://guardian.emerson.com/Login/
MitigationDeltaV S-seriescisa_csaf_ot
Emerson corrected the Firmware image verification vulnerability in Version 14.3 and mitigated it in all other versions. Please see the Emerson Guardian Support Portal (login required) for more information.
https://guardian.emerson.com/Login/
MitigationDeltaV SIScisa_csaf_ot
Emerson corrected the Firmware image verification vulnerability in Version 14.3 and mitigated it in all other versions. Please see the Emerson Guardian Support Portal (login required) for more information.
https://guardian.emerson.com/Login/

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.8–9.8

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.06.8mediumCVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:Hsecondary · CISA US

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USprimaryCWE-287USCWE-306US

affected products (13)

Products and version ranges known to be affected.

DeltaV CIOC/EIOC/WIOC IO cards: All versionsall versionscisa_csaf_otUS
DeltaV M-series: All versionsall versionscisa_csaf_otUS
DeltaV P-series: All versionsall versionscisa_csaf_otUS
DeltaV S-series: All versionsall versionscisa_csaf_otUS
DeltaV SIS: All versionsall versionscisa_csaf_otUS
Emerson DeltaV CIOC/EIOC/WIOC IO cardsall versionscisa_csaf_otUS
Emerson DeltaV M-seriesall versionscisa_csaf_otUS
Emerson DeltaV P-seriesall versionscisa_csaf_otUS
Emerson DeltaV S-seriesall versionscisa_csaf_otUS
Emerson DeltaV SISall versionscisa_csaf_otUS
n/a n/a≤ n/aenisa_euvdEU
Emerson Electric Corp. DeltaVall versionsfstec_bduRU
emerson deltav distributed control system≤ 2022-04-29nvdUScpe:2.3:a:emerson:deltav_distributed_control_system:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-22-181-03Emerson DeltaV Distributed Control System2022-06-30icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities can result in a denial-of-service condition, manipulation of runtime communications, or compromise of a controller.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd NVD CVE.org MITRE

published 2022-07-26modified 2026-06-17

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references (10)

External citations — patches, advisories, analysis.

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