CVE-2024-33897

Hms-networks Ewon Cosy+ Firmware vulnerability

9.1 CRITICALEPSS 0.66%

Published6 Aug 2024

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 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityNone

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected products

Hms-networks Ewon Cosy+ Firmware≥ 21.0s0 < 21.2s10 · ≥ 22.0s0 < 22.1s3

Remediation

Fixed in

Hms-networks Ewon Cosy+ Firmware≥ 21.2s10

Frequently asked

Is CVE-2024-33897 being actively exploited?

CVE-2024-33897 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.66%.

How severe is CVE-2024-33897?

CVE-2024-33897 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.66% probability of exploitation.

Which products are affected by CVE-2024-33897?

Affected products include Hms-networks Ewon Cosy+ Firmware.

How do I fix CVE-2024-33897?

Upgrade affected software to a fixed version, for example Hms-networks Ewon Cosy+ Firmware 21.2s10 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-33897 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.