CVE-2025-2233 json
Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability
published 2025-03-11 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-7555
- cvss
- 8.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- samsung smartthings 0.55.5
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 19 mo ago
Exploit prediction
0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 8.8 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Samsung SmartThings
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
zerodayinitiative.com
/advisories/ZDI-25-127/
third-party-advisory
Sources
- CVE List CVE-2025-2233
- NVD CVE-2025-2233
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