critical9.1
CVE-2026-25818
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 weak entropy for…
Impact
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 weak entropy for authentication cookies, allowing an attacker with a stolen session cookie to find the user password by brute-forcing an encryption parameter.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| HMS Networks | 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 |
Versions were read from the advisory text. No structured product data has been published for this record yet.