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High severity · published Jun 16, 2026
CVE-2026-10825
Improper JSON Input Validation in WebSocket API Leads to Denial of Service
7.1
CVSS
0.2%
EPSS
No
On KEV
Description
A denial-of-service vulnerability exists in the WebSocket API due to insufficient validation and handling of JSON-based requests. A low-privileged authenticated attacker can send a specially crafted request that causes service disruption and may result in an unexpected device reboot.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N6
NPort 6000-G2 Series · Moxa
1.0 through 1.1.0 · source: vendor
Affected product
N6
NPort 6000-G2 Series
Moxa
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-10825
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-10825
www.moxa.com
https://www.moxa.com/en/support/product-support/security-advisory/mpsa-268270-cve-2026-10825-improper-validation-of-input-vulnerability-in-serial-device-servers