CVE-2025-15017: Moxa NPort 5000AI-M12 Series · Active Debug Code
Affects Moxa NPort 5000AI-M12 SeriesSource CVE Database V5
Not known to be exploited · CVSS 7.0 High.
Data as of 26 Oct 2026, 08:30 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 31 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Moxa NPort 5000AI-M12 Series | Affected
| Fixed in– |
AI-suggested
European organizations should immediately assess the physical security of all locations where Moxa NPort 5000AI-M12 Series devices are deployed, ensuring restricted access to prevent unauthorized physical connections to UART interfaces. Network segmentation should be enforced to isolate these devices from broader networks, limiting potential lateral movement if compromised. Until an official patch is released, consider disabling or physically blocking access to UART ports where feasible. Implement strict inventory and asset management to identify all affected devices and monitor for unusual device behavior or unauthorized physical access attempts. Engage with Moxa for updates on patches or firmware upgrades addressing this vulnerability. Additionally, incorporate this vulnerability into risk assessments and incident response plans, emphasizing physical security controls and rapid response to detected intrusions. Regularly audit and update physical access policies in industrial and operational technology environments to reduce exposure.
Description
CVE-2025-15017 is a high-severity vulnerability affecting Moxa NPort 5000AI-M12 Series serial device servers, where active debug code remains enabled on the UART interface. An attacker with physical access can connect directly to the UART interface and gain unauthorized privileged access without authentication or user interaction. This allows execution of privileged operations and access to sensitive system resources, severely impacting confidentiality, integrity, and availability of the device. Exploitation complexity is low, but no remote exploitation or impact on external systems has been identified. The vulnerability affects version 1.0 of the product and has a CVSS 4.0 score of 7.0. No known exploits are currently in the wild, and no patches have been published yet. European organizations using these devices in critical infrastructure or industrial environments should prioritize physical security and monitor for updates from the vendor.