CVE-2025-2026 Other in NPort 6100-G2/6200-G2 Series
Authenticated attackers can cause a denial of service via null byte injection in the web API of Moxa NPort devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-2026?
CVE-2025-2026 is a high-severity vulnerability in Moxa NPort 6100-G2/6200-G2 Series, published on 31 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-170
Which versions are affected by CVE-2025-2026?
How do I fix CVE-2025-2026?
No fix has been published for CVE-2025-2026 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-2026 being exploited?
There is no known exploitation of CVE-2025-2026 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-5vwc-hh96-8x8g.