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Fencer Vulns
medium 6.5

CVE-2025-2522 json

Lack of buffer clearing before reuse may result in incorrect system behavior.

published 2025-07-10 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-21066

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits
0
none known

Summary

The Honeywell Experion PKS and OneWireless WDM

contains Sensitive Information in Resource vulnerability in the component Control Data Access (CDA). An attacker could potentially exploit this vulnerability, leading to a Communication Channel Manipulation, which could result in buffer reuse which may cause incorrect system behavior.

Honeywell also 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, FIM4, FIM8, UOC, CN100, HCA, C300PM, and C200E. The Experion PKS versions affected are 520.1 before

520.2 TCU9 HF1 and 530 before 530 TCU3. The OneWireless WDM affected versions are 322.1 through 322.4 and 330.1 through 330.3.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-205-03 updated cvss 6.5

Honeywell Experion PKS (Update A)

  • Honeywell Experion PKS <R520.2_TCU9_Hot_Fix_1, <R530_TCU3_Hot_Fix_1
    affected: vendor fix process.honeywell.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

cisa ICSA-25-247-01 updated cvss 6.5

Honeywell OneWireless Wireless Device Manager (WDM)

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
15 mo ago

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

  • Honeywell C300 PCNT02
  • Honeywell C300 PCNT05
  • Honeywell FIM4
  • Honeywell FIM8
  • Honeywell UOC
  • Honeywell CN100
  • Honeywell HCA
  • Honeywell C300PM
  • Honeywell C200E
  • Honeywell Wireless Device Manager

Classification

Weakness
  • CWE-226 Sensitive Information in Resource Not Removed Before Reuse

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.