Overview
The NVIDIA NeMo Framework has been discovered to contain a significant vulnerability, identified as CVE-2025-23250, which is of interest to administrators, cybersecurity experts, and users. This security issue could potentially allow an attacker to improperly limit a pathname to a restricted directory, leading to unauthorized file writes. The subsequent compromise could result in code execution and data tampering, making this a severe risk to data integrity and system security.
Vulnerability Summary
CVE ID: CVE-2025-23250
Severity: High (7.6 CVSS Score)
Attack Vector: Pathname Restriction Bypass
Privileges Required: Low level
User Interaction: Required
Impact: Unauthorized file writes, potential code execution, and data tampering
Affected Products
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Product | Affected Versions
NVIDIA NeMo Framework | All prior versions to patch
How the Exploit Works
The exploit works by exploiting the vulnerability in the NVIDIA NeMo Framework’s handling of pathnames. An attacker can manipulate the pathname to bypass restrictions, allowing them to write arbitrary files in restricted directories. This can potentially lead to malicious code execution or data tampering if successfully exploited.
Conceptual Example Code
While the specific details of the exploit code are confidential, an illustrative example of the potential exploit could be:
# Attacker crafts a pathname that bypasses the restrictions
echo "malicious content" > /path/to/restricted/directory/../../arbitrary_file
# If successful, the attacker can write arbitrary files
# This can potentially lead to code execution or data tamperingPlease note that the above is a simplified example and should not be used as an actual exploit. The real-world exploitation of this vulnerability may require complex manipulation of pathname and system-specific conditions.
Mitigation Guidance
Until a vendor patch is released and applied, users can implement a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation measures. These systems can help detect and prevent attempts to exploit this vulnerability. Users are strongly advised to update their NVIDIA NeMo Framework to the latest version as soon as the patch is available.
