CVE-2024-33896

Ewon Cosy\+ Firmware vulnerability

CVSS

7.2

EPSS

4.0%

EPSS pct

90th

Exploited

No known

Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 are vulnerable to code injection due to improper parameter blacklisting. This is fixed in version 21.2s10 and 22.1s3.

Affected vendor

Hms Networks

Affected product

Ewon Cosy\+ Firmware

CVSS vector

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

Weakness type (CWE)

CWE-78 — OS Command Injection

Published

2024-08-02

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 4.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2024-33896

Confirm whether Hms Networks Ewon Cosy\+ Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2024-33896.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2024-33896

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2024-33896 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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