CVE-2024-33897

CRITICAL EPSS 46.9%
Published Aug 6, 20241y ago · Modified Jun 17, 20262w ago
9.1 CVSS 3.1
Critical
Find Similar
Published Aug 6, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

A compromised HMS Networks Cosy+ device could be used to request a Certificate Signing Request from Talk2m for another device, resulting in an availability issue. The issue was patched on the Talk2m production server on April 18, 2024.

CVSS Details

Base Score
9.1
Exploitability
3.9
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
46.9% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-425

Affected Products 8

VendorProductVersionRange
hms-networksewon_cosy\+_firmware*≥21.0s0  –  <21.2s10
hms-networksewon_cosy\+_firmware*≥22.0s0  –  <22.1s3
hms-networksewon_cosy\+_4g_apac*any
hms-networksewon_cosy\+_4g_eu*any
hms-networksewon_cosy\+_4g_jp*any
hms-networksewon_cosy\+_4g_na*any
hms-networksewon_cosy\+_ethernet*any
hms-networksewon_cosy\+_wifi*any

References 6

  • seclists.org http://seclists.org/fulldisclosure/2024/Aug/24
  • seclists.org http://seclists.org/fulldisclosure/2024/Aug/27
  • blog.syss.com https://blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/
    ExploitThird Party Advisory
  • hmsnetworks.blob.core.windows.net 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
    Vendor Advisory
  • ewon.biz https://www.ewon.biz/products/cosy/ewon-cosy-wifi
    Product
  • hms-networks.com https://www.hms-networks.com/cyber-security
    Not Applicable

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.