The Emerson DeltaV Distributed Control System (DCS) controllers and IO cards through 2022-04-29 misuse passwords.

published 2022-07-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-34270

cvss: 5.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits: 0; none known

The Emerson DeltaV Distributed Control System (DCS) controllers and IO cards through 2022-04-29 misuse passwords. TELNET on port 18550 provides access to a root shell via hardcoded credentials. This affects S-series, P-series, and CIOC/EIOC nodes. NOTE: this is different from CVE-2014-2350.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-181-03 updated 2022-06-30 cvss 1.8

Emerson DeltaV Distributed Control System

Emerson DeltaV CIOC/EIOC/WIOC IO cards Emerson DeltaV M-series Emerson DeltaV P-series Emerson DeltaV S-series Emerson DeltaV SIS
affected: mitigation guardian.emerson.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Classification

Weakness

CWE-798 Use of Hard-coded Credentials

References

forescout.com /blog/
third-party-advisory
cisa.gov /uscert/ics/advisories/icsa-22-181-03
third-party-advisory, us-government-resource

Sources

CVE List CVE-2022-29963
NVD CVE-2022-29963

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary