Vulnerability · Published Dec 31, 2025 · Assigned by Moxa
CVE-2025-2026
High 7.1
In plain English
A high-severity security flaw in NPort 6100-G2/6200-G2 Series from Moxa. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
The NPort 6100-G2/6200-G2 Series is affected by a high-severity vulnerability (CVE-2025-2026) that allows remote attackers to execute a null byte injection through the device’s web API. This may lead to an unexpected device reboot and result in a denial-of-service (DoS) condition. An authenticated remote attacker with web read-only privileges can exploit the vulnerable API to inject malicious input. Successful exploitation may cause the device to reboot, disrupting normal operations and causing a temporary denial of service.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Moxa | NPort 6100-G2/6200-G2 Series | 1.0.0 |
Weakness: CWE-170 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N