CVE-2025-3946Incorrect response generation during FTEB protocol processing
- 8.2HighCVSS base score
- 0.55%Exploitation in 30 daysEPSS · top 53% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Honeywell Experion PKS and OneWireless WDM contains a Deployment of Wrong Handler vulnerability in the component Control Data Access (CDA). An attacker could potentially exploit this vulnerability, leading to Input Data Manipulation, which could result in incorrect handling of packets leading to remote code execution. Honeywell recommends updating to the most recent version of Honeywell Experion PKS:520.2 TCU9 HF1 and 530.1 TCU3 HF1 and OneWireless: 322.5 and 331.1. 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. The OneWireless WDM affected versions are 322.1 through 322.4 and 330.1 through 330.3.
Timeline
ID reserved
By Honeywell
- 3 months later
· 3 months later
Published
- 25 days later
· 25 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| HoneywellCNA (assigner) | 3.1 | High8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
| NVDNVD · Deferred | 3.1 | High8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
- EPSS (exploitation in 30 days)
- 0.55% · top 53% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.2.
Affected products
- affected 520.1 – ≤ 520.2 TCU9
- affected 530 – ≤ 530 TCU3
- affected 520.1 – ≤ 520.2 TCU9
- affected 530 – ≤ 530 TCU3
- affected 520.1 – ≤ 520.2 TCU9
- affected 530 – ≤ 530 TCU3
- affected 520.1 – ≤ 520.2 TCU9
- affected 530 – ≤ 530 TCU3
- affected 520.1 – ≤ 520.2 TCU9
- affected 530 – ≤ 530 TCU3
- affected 520.1 – ≤ 520.2 TCU9
- affected 530 – ≤ 530 TCU3
- affected 520.1 – ≤ 520.2 TCU9
- affected 530 – ≤ 530 TCU3
- affected 520.1 – ≤ 520.2 TCU9
- affected 530 – ≤ 530 TCU3
- affected 520.1 – ≤ 520.2 TCU9
- affected 530 – ≤ 530 TCU3
Honeywell · Wireless Device Manager
- affected 322.1 – ≤ 322.4
- affected 330.1 – ≤ 330.3
References
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-21064 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-3946)Record last updated .