HOMEVULNERABILITIESCVE-2022-29965
MEDIUM

CVE-2022-29965

CWE-327Published: July 26, 2022· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

The Emerson DeltaV Distributed Control System (DCS) controllers and IO cards through 2022-04-29 misuse passwords. Access to privileged operations on the maintenance port TELNET interface (23/TCP) on M-series and SIS (CSLS/LSNB/LSNG) nodes is controlled by means of utility passwords. These passwords are generated using a deterministic, insecure algorithm using a single seed value composed of a day/hour/minute timestamp with less than 16 bits of entropy. The seed value is fed through a lookup table and a series of permutation operations resulting in three different four-character passwords corresponding to different privilege levels. An attacker can easily reconstruct these passwords and thus gain access to privileged maintenance operations. NOTE: this is different from CVE-2014-2350.

NVD Source

Technical Analysis

CVE-2022-29965 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

emerson49 product(s)
deltav distributed control systemdeltav distributed control system sq controller firmwaredeltav distributed control system sq controllerdeltav distributed control system sx controller firmwaredeltav distributed control system sx controllerse4002s1t2b6 high side 40-pin mass i\/o terminal block firmwarese4002s1t2b6 high side 40-pin mass i\/o terminal blockse4003s2b4 16-pin mass i\/o terminal block firmwarese4003s2b4 16-pin mass i\/o terminal blockse4003s2b524-pin mass i\/o terminal block firmwarese4003s2b524-pin mass i\/o terminal blockse4017p0 h1 i\/o interface card and terminl block firmware+37
Source: NVD CPE · 49 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (4)

https://www.cisa.gov/uscert/ics/advisories/icsa-22-181-03Third Party Advisory · US Government Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-22-181-03Third Party Advisory · US Government Resource

Quick Facts

CVE IDCVE-2022-29965
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-327
CISA KEVNo
Affected1 vendor(s)
PublishedJul 26, 2022

Related CVEs (CWE-327)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2022-29965 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.