Moxa NPort flaws enable RCE on industrial gateways
Multiple vulnerabilities in Moxa NPort serial device servers allow remote code execution, data exposure, and policy bypass; patches available.
Sourcecert.ssi.gouv.fr — open the original
What to check
- Applies to
- The 3 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
CERT-FR has disclosed multiple vulnerabilities affecting Moxa NPort serial device servers, which are widely deployed in industrial and critical infrastructure environments for serial-to-Ethernet connectivity. The flaws include a format string vulnerability (CVE-2026-10828), a stack-based buffer overflow (CVE-2026-10829), and an input validation weakness (CVE-2026-10825). Exploitation could allow an attacker to execute arbitrary code remotely, compromise data confidentiality, bypass security policies, or trigger denial-of-service conditions.
Affected products include NPort 6000-G2 Series prior to v1.2.0, NPort W2150A-W4/W2250A-W4 Series prior to v1.5.1, and NPort W2150A/W2250A Series v2.3 without the latest security patches. Moxa has released patches for all affected product lines. Given the deployment profile of these devices in operational technology environments and the severity of the vulnerabilities, affected organizations should prioritize patching, particularly in sectors relying on serial device connectivity for industrial control systems.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0760
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