CVE intelligence and bounded remediation

CVE-2022-29963 — The Emerson DeltaV Distributed Control System (DCS) controllers and IO cards through 2022-04-29 misuse passwords

Medium CVSS 5.5

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.

Severity
Medium
CVSS
5.5 (3.1)
Published
2022-07-26
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-798

Affected products

  • emerson / deltav_distributed_control_system_sq_controller_firmware
  • emerson / deltav_distributed_control_system_sx_controller_firmware
  • emerson / se4002s1t2b6_high_side_40-pin_mass_i/o_terminal_block_firmware
  • emerson / se4003s2b4_16-pin_mass_i/o_terminal_block_firmware
  • emerson / se4003s2b524-pin_mass_i/o_terminal_block_firmware
  • emerson / se4017p0_h1_i/o_interface_card_and_terminl_block_firmware

Showing 6 representative product identities from 24 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authentication bypass and missing authentication

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Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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