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01 Record

CVE-2025-3946

Incorrect response generation during FTEB protocol processing

HighPUBLISHEDCNA: Honeywell
CNA base score8.2 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

02 Description

Incorrect response generation during FTEB protocol processing

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.55% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 45.9% of scored records. A rank, not a probability.
NVD base score
8.2 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
NVD analysis status
Deferred. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-07-10 20:16Z1 YR AGO
Last updated
2025-08-04 19:46Z1 YR AGO
Reserved
2025-04-25
Assigning CNA
Honeywell
Record state
PUBLISHED
Severity
High (CVSS 8.2)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Weaknesses
  • CWE-430Deployment of Wrong HandlerBase
Data version
5.1
Document digest
eb97da2d1789211c1728adf9dd21e4ea64d7a47f055b2ed1317fac65b3770f8a

05 Affected products

VendorProductVersionsPlatforms
HoneywellC300 PCNT02520.1 to 520.2 TCU9, 530 to 530 TCU3Experion PKS
HoneywellC300 PCNT05520.1 to 520.2 TCU9, 530 to 530 TCU3Experion PKS
HoneywellFIM4520.1 to 520.2 TCU9, 530 to 530 TCU3Experion PKS
HoneywellFIM8520.1 to 520.2 TCU9, 530 to 530 TCU3Experion PKS
HoneywellUOC520.1 to 520.2 TCU9, 530 to 530 TCU3Experion PKS
HoneywellCN100520.1 to 520.2 TCU9, 530 to 530 TCU3Experion PKS
HoneywellHCA520.1 to 520.2 TCU9, 530 to 530 TCU3Experion PKS
HoneywellC300PM520.1 to 520.2 TCU9, 530 to 530 TCU3Experion PKS
HoneywellC200E520.1 to 520.2 TCU9, 530 to 530 TCU3Experion PKS
HoneywellWireless Device Manager322.1 to 322.4, 330.1 to 330.3OneWireless

06 References