CVE Tools
Sign in

CVE-2025-3947

Integer underflow during processing of short network packets in CDA FTEB responder

Published: Jul 10, 2025Updated: Jul 15, 2025 Sources: CVE List NVD BDU csafCWE-191
8.2HIGH
NVD MITRE
EPSS Score
0.3%
Top 76.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The Honeywell Experion PKS contains an Integer Underflow vulnerability in the component Control Data Access (CDA). An attacker could potentially exploit this vulnerability, leading to Input Data Manipulation, which could result in improper integer data value checking during subtraction leading to a denial of service. Honeywell recommends updating to the most recent version of Honeywell Experion PKS:520.2 TCU9 HF1 and 530.1 TCU3 HF1. The affected Experion PKS products are C300 PCNT02, C300 PCNT05, FIM4, FIM8, UOC, CN100, HCA, C300PM, and C200E. The Experion PKS versions affected are from 520.1 through 520.2 TCU9 and from 530 through 530 TCU3.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:LA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-191

Affected Products

Experion PKSHoneywell Internatioinal Inc.
On-prem
ICS / OT / IoT / plc-scada-hmi
Honeywell OneWireless Wireless Device Manager (WDM)Honeywell Internatioinal Inc.
On-premNetwork Device
ICS / OT / IoT / plc-scada-hmi
C300 PCNT02HoneywellICS / OT / IoT
C300 PCNT05HoneywellICS / OT / IoT
FIM4HoneywellICS / OT / IoT
honeywell internatioinal inc.commercialUSICS / OT / IoTaka honeywell international, experion pks, experion lx, experion plantcruise
honeywellcommercialUSICS / OT / IoTaka experion server, saia pg5 controls suite, experion pks
and 6 more affected products View all →

Exploitability

Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://process.honeywell.com/
process.honeywell.com
https://www.cisa.gov/news-events/ics-advisories/icsa-25-205-03
cisa.gov
https://process.honeywell.com/
process.honeywell.com
and 20 more references View all →

Timeline

Published
Jul 10, 2025
Last Updated
Jul 15, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2025-3947 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows