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CVE-2026-10825 is a denial-of-service vulnerability affecting Moxa NPort serial device servers, specifically including the NPort 6000-G2, 6100-G2/6200-G2, 6400-G2, and 6600-G2 series running firmware v1.1.0 and earlier. The flaw is in the WebSocket API, where JSON-based requests are insufficiently validated and handled. A low-privileged authenticated attacker can send a specially crafted JSON request to the WebSocket interface, triggering service disruption and potentially causing an unexpected device reboot. Moxa classifies the issue as an improper validation of input vulnerability and maps it to CWE-1287.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An improper validation of input vulnerability affecting Moxa serial device servers.
An improper validation of input vulnerability affecting Moxa serial device servers.
A high-severity denial-of-service vulnerability in the WebSocket API of Moxa serial device servers caused by improper JSON input validation, allowing a low-privileged authenticated attacker to disrupt service and potentially reboot the device.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.