CVE-2024-33897

A compromised HMS Networks Cosy+ device could be used to request a Certificate Signing Request...

9.1 Critical

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: High

Exploit likelihood

0.66%Up 0.6 points since Aug 13, 2024

What each source reports

NVD Score used 9.1

Record: CVE-2024-33897
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness: CWE-425
Updated: 2026-11-02

CVE List 9.1

Record: CVE-2024-33897
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness: CWE-425
Updated: 2026-11-02

EUVDEUVD-2024-31601 9.1

Record: EUVD-2024-31601
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-x2r7-mhp8-xvhm 9.1

A compromised HMS Networks Cosy+ device could be used to request a Certificate Signing Request...

Record: GHSA-x2r7-mhp8-xvhm
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness: CWE-425
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-33897 is a critical vulnerability (CVSS 9.1) in Hms-networks Ewon Cosy\+ Firmware, published August 6, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.66%, the 51st percentile. No source names a fixed version.