Insecure Permission vulnerability in Cosy+ devices running a firmware 21.x below 21.2s10…
Priority MEDIUM 42CWE-269Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-269.
Summary
Insecure Permission vulnerability in Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 are executing several processes with elevated privileges.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00848 58th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:hms-networks:ewon_cosy\+_firmware:*:*:*:*:*:*:*:* | 21.0s0 to before 21.2s10; 22.0s0 to before 22.1s3 | Vulnerable | HMS Networks |
| cpe:2.3:h:hms-networks:ewon_cosy\+_4g_apac:-:*:*:*:*:*:*:* | not specified by NVD | Running on | HMS Networks |
| cpe:2.3:h:hms-networks:ewon_cosy\+_4g_eu:-:*:*:*:*:*:*:* | not specified by NVD | Running on | HMS Networks |
| cpe:2.3:h:hms-networks:ewon_cosy\+_4g_jp:-:*:*:*:*:*:*:* | not specified by NVD | Running on | HMS Networks |
| cpe:2.3:h:hms-networks:ewon_cosy\+_4g_na:-:*:*:*:*:*:*:* | not specified by NVD | Running on | HMS Networks |
| cpe:2.3:h:hms-networks:ewon_cosy\+_ethernet:-:*:*:*:*:*:*:* | not specified by NVD | Running on | HMS Networks |
| cpe:2.3:h:hms-networks:ewon_cosy\+_wifi:-:*:*:*:*:*:*:* | not specified by NVD | Running on | HMS Networks |
- cpe:2.3:o:hms-networks:ewon_cosy\+_firmware:*:*:*:*:*:*:*:* Versions 21.0s0 to before 21.2s10; 22.0s0 to before 22.1s3 Vulnerable ·HMS Networks
- cpe:2.3:h:hms-networks:ewon_cosy\+_4g_apac:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·HMS Networks
- cpe:2.3:h:hms-networks:ewon_cosy\+_4g_eu:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·HMS Networks
- cpe:2.3:h:hms-networks:ewon_cosy\+_4g_jp:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·HMS Networks
- cpe:2.3:h:hms-networks:ewon_cosy\+_4g_na:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·HMS Networks
- cpe:2.3:h:hms-networks:ewon_cosy\+_ethernet:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·HMS Networks
- cpe:2.3:h:hms-networks:ewon_cosy\+_wifi:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·HMS Networks
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-33894
- 2026-10-03 Alias added: GHSA-7jmc-v9fw-3rgr
References
Exploit 2
Advisory 2
More HMS Networks Ewon Cosy+ Firmware vulnerabilities
- TI-2024-22369 A compromised HMS Networks Cosy+ device could be used to request a Certificate Signing… CVSS 3.1CRITICAL 9.1
- TI-2024-22364 Insecure Permissions vulnerability in Cosy+ devices running a firmware 21.x below 21.2s10… CVSS 3.1HIGH 7.5
- TI-2024-22368 Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 are… CVSS 3.1HIGH 7.2
- TI-2024-22367 Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 use a… CVSS 3.1MEDIUM 6.6
- TI-2024-22365 Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 are… CVSS 3.1MEDIUM 6.1
Sources
- CVE-2024-33894 · CVE Program
- CVE-2024-33894 · NVD
- FIRST EPSS
- GHSA-7jmc-v9fw-3rgr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences