CVE-2026-25817
High
Description
HMS Networks Ewon Flexy with firmware before 15.0s4, Cosy+ with firmware 22.xx before 22.1s6, and Cosy+ with firmware 23.xx before 23.0s3 have improper neutralization of special elements used in an OS command allowing remote code execution by attackers with low privilege access on the gateway, provided the attacker has credentials.
SeverityHigh
CVSS8.8
Exploit probability—
ProductEwon Flexy
PublishedMar 13, 2026
First seenMar 13, 2026
Weakness typeCWE-94Code injection
How to fix
Update
- HMS Networks Ewon Flexy15.0s4 or later
- HMS Networks Cosy+22.1s6, 23.0s3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| HMS Networks Ewon Flexy | No range specified | 15.0s4 |
| HMS Networks Cosy+ | No range specified | 22.1s6, 23.0s3 |
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