Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Samsung | SmartThings | unknown |
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No data.
| Vendor | Product | Versions |
|---|---|---|
| Samsung | Smartthings | — |
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-7555 | 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. |
No CVSS v4.0
No CVSS v3.1
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.770% probability within 30 days)
| Link | Providers |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-25-127/ |
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| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:samsung:smartthings:*:*:*:*:*:*:*:* |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability | |
| Weaknesses | CWE-347 | |
| References |
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| Metrics |
cvssV3_0
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