Authentication Bypass Vulnerability in Samsung SmartThings
CVE-2025-2233

8.8HIGH

Key Information:

Vendor
Samsung
Status
Smartthings
Vendor
CVE Published:
11 March 2025

Badges

📈 Score: 1,130👾 Exploit Exists🟡 Public PoC📰 News Worthy

What is CVE-2025-2233?

CVE-2025-2233 is an authentication bypass vulnerability affecting Samsung SmartThings, a platform designed to integrate and manage smart home devices. This vulnerability allows attackers on the same network to bypass authentication mechanisms, which can lead to unauthorized access and control over the smart home environment. The lack of proper verification of cryptographic signatures in the Hub Local API service highlights a significant security flaw that could potentially enable malicious actors to exploit connected systems without initial authentication.

Technical Details

The vulnerability exists within the Hub Local API service of Samsung SmartThings, which typically listens on TCP port 8766. The core issue stems from inadequate verification of cryptographic signatures, allowing unauthorized users to bypass authentication requirements. Attackers can exploit this flaw without needing to provide valid login credentials, making it particularly dangerous for users relying on the smart home automation features offered by the platform.

Potential Impact of CVE-2025-2233

  1. Unauthorized Control of Smart Devices: Attackers can gain access to and manipulate connected smart home devices, potentially leading to privacy invasions or malicious use of these devices.

  2. Data Leakage: Bypassing authentication may expose sensitive user data stored on the platform, risking the privacy and security of personal information connected to the smart home system.

  3. Expansion of Network Threats: Once inside the network, attackers may exploit the compromised system to launch additional attacks against other devices or systems, broadening the overall impact on organizational and personal security.

Affected Version(s)

SmartThings 000.054.00013

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-2233
Created by McTavishSue

News Articles

favicon imageSystemTek

Samsung SmartThings Improper Verification Of Cryptographic Signature Authentication Bypass Vulnerability (CVE-2025-2233)

CVE-2025-2233 allows attackers to bypass authentication on Samsung SmartThings due to improper signature verification.

2 weeks ago

favicon imageVulDB

CVE-2025-2233 Samsung SmartThings Hub Local API Service signature verification (ZDI-25-127)

A vulnerability was found in Samsung SmartThings 000.054.00013. It has been classified as very critical. This vulnerability is traded as CVE-2025-2233.

2 weeks ago

References

https://www.zerodayinitiative.com/advisories/ZDI-25-127/
x_research-advisory

CVSS V3.0

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • 📰

    First article discovered by VulDB

  • Vulnerability published

  • Vulnerability Reserved

.