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  1. CVEs
  2. CVE-2024-33895
  1. CVEs

CVE-2024-33895

medium
  • Information
  • CPEs
  • Plugins

Description

Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 use a unique key to encrypt the configuration parameters. This is fixed in version 21.2s10 and 22.1s3, the key is now unique per device.

References

https://www.hms-networks.com/cyber-security

https://www.ewon.biz/products/cosy/ewon-cosy-wifi

https://hmsnetworks.blob.core.windows.net/nlw/docs/default-source/products/cybersecurity/security-advisory/hms-security-advisory-2024-07-29-001--ewon-several-cosy--vulnerabilities.pdf

https://blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/

Details

Source: Mitre, NVD

Published: 2024-08-02

Updated: 2025-03-13

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 6.6

Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: Medium

EPSS

EPSS: 0.00091

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