Description

NVIDIA NeMo Speech for all platforms contains a vulnerability in the speech data explorer component, where malicious data created by an attacker could cause remote code execution. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, information disclosure, and data tampering.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.8",
  "pubDate": "2026-09-22T15:17:10.157Z",
  "pubdate": "2026-09-22T15:17:10.157Z",
  "executiveSummary": "This vulnerability exists within the speech data explorer component of NVIDIA NeMo, affecting all platforms.\nThe flaw allows for arbitrary remote code execution (RCE) initiated through the processing of maliciously crafted speech data.\nSuccessful exploitation facilitates unauthorized code execution, potential privilege escalation, sensitive information disclosure, and unauthorized data tampering.\nThe vulnerability represents a critical security risk as it allows an attacker to compromise the integrity, confidentiality, and availability of the host environment.\nThe attack vector necessitates the supply of a specifically engineered malicious input file to the speech data explorer interface.\nOrganizations utilizing NVIDIA NeMo should prioritize monitoring for anomalous behavior within the data processing pipeline to mitigate unauthorized access or persistent exploitation attempts.",
  "technicalDetails": "The vulnerability resides in the speech data explorer component, a subsystem within NVIDIA NeMo responsible for processing, parsing, and visualizing speech-related datasets.\nThe root cause is identified as improper neutralization of input data during the ingestion or deserialization process, which facilitates the injection of arbitrary instructions into the underlying execution environment.\nThe attack flow commences when an attacker provides a maliciously crafted speech data file to the explorer interface. When the component attempts to process or analyze the structure of this file, the lack of rigorous input validation or secure deserialization practices allows the malicious payload to bypass expected security boundaries.\nBy leveraging this flaw, an attacker can achieve arbitrary code execution with the permissions of the process running the NVIDIA NeMo component. This effectively results in a remote code execution scenario, enabling the attacker to execute shell commands, deploy further malicious payloads, or interact directly with the host filesystem.\nThe exploitation mechanism likely involves manipulating data structures during the parsing of speech data formats, triggering memory corruption, or exploiting unsafe dynamic evaluation functions (such as eval-like calls) within the application logic.\nPost-exploitation, the threat actor can perform lateral movement, escalate privileges if the service is running with elevated permissions, access internal configuration files or model weights (information disclosure), and modify training data or application logic (data tampering).\nBecause the vulnerability exists in the core speech data processing logic, any service or application utilizing the affected NVIDIA NeMo speech data explorer is inherently susceptible to this exploit when exposed to untrusted data sources.\nThe lack of memory isolation or sandboxing between the data explorer component and the host system allows the exploit to impact the wider application container or the host operating system, depending on the deployment configuration."
}