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High 7.1Published Dec 31, 2025

CVE-2025-2026The 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.

Updated under an hour ago ()

Does this affect you?

It affects Moxa NPort 6100-G2/6200-G2 Series. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
7.1 HIGH (v4.0, CNA)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
Weakness (CWE)
CWE-170
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Moxa
NVD analysis
Deferred
Record last updated
Dec 31, 2025
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Moxa NPort 6100-G2/6200-G2 Series
moxa:nport_6100_g2_6200_g2_series (from the name)
1.0.0; 1.1.0 not affected
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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