HOMEVULNERABILITIESCVE-2014-5435
CRITICAL

CVE-2014-5435

CWE-123Published: April 8, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

An arbitrary memory write vulnerability exists in the dual_onsrv.exe module in Honeywell Experion PKS R40x before R400.6, R41x before R410.6, and R43x before R430.2, that could lead to possible remote code execution or denial of service. Honeywell strongly encourages and recommends all customers running unsupported versions of EKPS prior to R400 to upgrade to a supported version.

NVD Source

Technical Analysis

CVE-2014-5435 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

honeywell1 product(s)
experion process knowledge system
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (2)

https://ics-cert.us-cert.gov/advisories/ICSA-14-352-01Mitigation · Third Party Advisory · US Government Resource
https://ics-cert.us-cert.gov/advisories/ICSA-14-352-01Mitigation · Third Party Advisory · US Government Resource

Quick Facts

CVE IDCVE-2014-5435
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-123
CISA KEVNo
Affected1 vendor(s)
PublishedApr 8, 2019

Related CVEs (CWE-123)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2014-5435 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.