CVE-2025-2233
CVE-2025-2233 is a high-severity vulnerability in Samsung Smartthings with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 1% (50th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-7555
- Weakness: CWE-347
- Affected product: Samsung Smartthings
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-2233?
- 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.
- How severe is CVE-2025-2233?
- CVE-2025-2233 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-2233 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-2233?
- CVE-2025-2233 affects Samsung Smartthings. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-2233?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-2233 have an EU (EUVD) identifier?
- Yes. CVE-2025-2233 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7555.
- When was CVE-2025-2233 published?
- CVE-2025-2233 was published on 2025-03-11 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:samsung:smartthings:*:*:*:*:*:*:*:*
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