CVE-2025-2523 is a critical Integer Underflow vulnerability in the Control Data Access (CDA) component of Honeywell Experion PKS and OneWireless WDM. This flaw, affecting various Experion PKS versions (520.1-520.2 TCU9, 530-530 TCU3) and OneWireless WDM versions (322.1-322.4, 330.1-330.3), could allow an unauthenticated remote attacker to manipulate communication channels, leading to remote code execution. With a CVSS score of 9.4 (CRITICAL), it presents a high risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 12 mentions, indicating awareness among security researchers. Honeywell recommends immediate updates to Experion PKS: 520.2 TCU9 HF1, 530.1 TCU3 HF1, and OneWireless: 322.5, 331.1.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Honeywell | C200E | >= 520.1, <= 520.2 TCU9, >= 530, <= 530 TCU3CNA affecteddefault unaffected | |
| Honeywell | C300 PCNT02 | >= 520.1, <= 520.2 TCU9, >= 530, <= 530 TCU3CNA affecteddefault unaffected | |
| Honeywell | C300 PCNT05 | >= 520.1, <= 520.2 TCU9, >= 530, <= 530 TCU3CNA affecteddefault unaffected | |
| Honeywell | C300PM | >= 520.1, <= 520.2 TCU9, >= 530, <= 530 TCU3CNA affecteddefault unaffected | |
| Honeywell | CN100 | >= 520.1, <= 520.2 TCU9, >= 530, <= 530 TCU3CNA affecteddefault unaffected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.