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.
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Fixes
Solution
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Workaround
No workaround given by the vendor.
References
History
Fri, 13 Mar 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-315 | |
| Metrics |
cvssV3_1
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Fri, 13 Mar 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Hms-networks
Hms-networks ewon Cosy Hms-networks ewon Flexy |
|
| Vendors & Products |
Hms-networks
Hms-networks ewon Cosy Hms-networks ewon Flexy |
Thu, 12 Mar 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 weak entropy for authentication cookies, allowing an attacker with a stolen session cookie to find the user password by brute-forcing an encryption parameter. | |
| References |
|
Projects
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-03-13T12:58:56.027Z
Reserved: 2026-02-06T00:00:00.000Z
Link: CVE-2026-25818
Updated: 2026-03-13T12:58:51.647Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-03-13T09:53:58Z
Weaknesses