CVE-2024-33896

HIGHNVD 7.27.2—Elevated

7.2

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.

CVSS v3: 7.2
EG Score: 7.2(medium)
EPSS: 95.1%
KEV: Not listed

Published

August 2, 2024

Last Modified

November 4, 2025

References (5)

cve@mitrehttps://blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/
cve@mitrehttps://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
cve@mitrehttps://www.ewon.biz/products/cosy/ewon-cosy-wifi
cve@mitrehttps://www.hms-networks.com/cyber-security
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2024/Aug/21

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-78OS Command Injection

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-08 14:16 UTCepss_batch
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2026-05-29 13:43 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-52160
First seen Apr 10, 2025
Cosy+ firmware 21.2s7 - Command Injection
Open source ↗

Frequently asked(5)

What is CVE-2024-33896?

CVE-2024-33896 is a high vulnerability published on August 2, 2024. 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.

When was CVE-2024-33896 disclosed?

CVE-2024-33896 was first published in the National Vulnerability Database on August 2, 2024, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2024-33896 actively exploited?

CVE-2024-33896 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 95.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2024-33896?

CVE-2024-33896 has a CVSS v3 base score of 7.2 (NVD).

How do I remediate CVE-2024-33896?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-33896, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2024-33896

📅 Published

🔄 Last Modified

🔗 References (5)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2024-33896?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (5)

Frequently asked(5)

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