Description

The OpenRGB network protocol allows attackers to cause memory exhaustion and out-of-bounds memory reads and writes by passing inconsistent data.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "8.2",
  "pubDate": "2026-08-26T10:16:40.167Z",
  "pubdate": "2026-08-26T10:16:40.167Z",
  "executiveSummary": "The OpenRGB network protocol is susceptible to memory corruption vulnerabilities resulting from insufficient input validation. By transmitting malformed or inconsistent data packets to the OpenRGB service, an attacker can trigger memory exhaustion, out-of-bounds (OOB) memory reads, and arbitrary OOB memory writes.\nThis vulnerability resides within the network communication stack, which processes incoming requests without verifying the integrity or logical consistency of the packet structure. The primary security impact includes potential denial-of-service (DoS) conditions through application crashing or resource exhaustion, and the potential for remote code execution if an attacker leverages the OOB read/write primitives to corrupt critical control flow data or bypass memory protections.\nThe vulnerability is exposed over the network, allowing remote, unauthenticated attackers to send malicious payloads to the OpenRGB network port. Because OpenRGB often operates with elevated privileges to interact with hardware, successful exploitation may lead to full system compromise. Risk is high due to the ease of network reachability and the potential for memory corruption leading to system instability or persistent unauthorized access.",
  "technicalDetails": "The root cause of this vulnerability is improper validation of header length fields and payload data within the OpenRGB network protocol handlers. The protocol relies on packet structures that define the size and type of data being transmitted; however, the implementation fails to verify that the declared length in the packet header matches the actual size of the accompanying data buffer provided by the client.\nAttack flow begins with an attacker establishing a TCP connection to the OpenRGB network interface. The attacker then constructs a series of specially crafted network packets. By providing an inconsistent 'data length' field that contradicts the actual payload size, the attacker forces the parsing function to allocate or access memory based on untrusted input. If the declared length is larger than the actual payload, the buffer read may exceed the intended bounds, leaking adjacent memory contents (OOB read). Conversely, if the system attempts to process an overly large length without proper bounds checking, a heap-based buffer overflow or a severe memory exhaustion scenario occurs (OOB write).\nThe memory exhaustion vector is achieved by sending packets that request massive memory allocations, exceeding available system resources and causing the OpenRGB process to terminate. The OOB write vector is particularly dangerous; it allows an attacker to overwrite adjacent data structures in the heap. If the application logic relies on these structures for pointers or function callbacks, the attacker can redirect the program execution flow to malicious code contained within the payload. Given the nature of OpenRGB as a service that requires low-level access to hardware controllers (SMBus/I2C), the application typically runs with sufficient privileges to interact directly with hardware drivers, escalating the impact of a successful remote compromise.\nThe vulnerability is inherent to the protocol state machine, which lacks granular checks on packet consistency before committing to memory-related operations. Because the network listener typically binds to all interfaces, it is exposed to both local and remote network segments. There is no authentication mechanism by default in the OpenRGB network protocol, allowing any network-adjacent user to initiate the exploit sequence without prior system access or credential validation."
}