Vulnerability Description
Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Samsung SmartThings. Authentication is not required to exploit this vulnerability. The specific flaw exists within the Hub Local API service, which listens on TCP port 8766 by default. The issue results from the lack of proper verification of a cryptographic signature. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-25615.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Samsung | Smartthings | < 0.55.5 |
Related Weaknesses (CWE)
References
- https://www.zerodayinitiative.com/advisories/ZDI-25-127/Third Party Advisory
FAQ
What is CVE-2025-2233?
CVE-2025-2233 is a vulnerability with a CVSS score of 8.8 (HIGH). Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected inst...
How severe is CVE-2025-2233?
CVE-2025-2233 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-2233?
Check the references section above for vendor advisories and patch information. Affected products include: Samsung Smartthings.