CVE-2025-33251: 
NixOS vulnerability analysis and mitigation

CVE-2025-33251 is a code injection vulnerability in the NVIDIA NeMo Framework that allows a local attacker to cause remote code execution. It affects all versions of NVIDIA NeMo prior to 2.6.1. The vulnerability was published on February 18, 2026, with an initial NVD analysis completed on February 20, 2026. It carries a CVSS v3.1 base score of 7.8 (High), assigned by NVIDIA Corporation (NVD, NVIDIA Advisory).

The vulnerability is classified as CWE-94 (Improper Control of Generation of Code / Code Injection), meaning the framework fails to properly control the generation or execution of code derived from user-controllable input. An attacker with local access and low privileges can exploit this flaw to inject and execute arbitrary code within the NeMo Framework process. No user interaction is required, and the attack complexity is low, making exploitation straightforward for any authenticated local user. The attack vector is local (AV:L), limiting remote exploitation to scenarios where an attacker already has a foothold on the target system (NVD, Red Hat CVE).

Successful exploitation can result in arbitrary code execution with the privileges of the NeMo Framework process, potentially leading to full system compromise. Additional consequences include denial of service, unauthorized information disclosure, and data tampering. Given that NeMo is commonly deployed in AI/ML research and production environments, exploitation could expose sensitive model data, training datasets, or proprietary configurations (NVD, NVIDIA Advisory).

As of the time of reporting, there is no public proof-of-concept exploit and no evidence of in-the-wild exploitation. The EPSS score is approximately 0.176%, indicating a low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. No threat actor attribution has been reported (Red Hat CVE).

NVIDIA has released a patch addressing this vulnerability in NeMo Framework version 2.6.1. Organizations should upgrade to version 2.6.1 or later as the primary remediation step. As interim measures, restrict local access to systems running vulnerable NeMo versions, implement least-privilege principles for accounts that interact with the framework, and monitor for anomalous code execution activity on affected hosts (NVIDIA Advisory, NVIDIA Product Security).

The vulnerability received limited public commentary beyond standard vulnerability database aggregation. Red Hat tracked the CVE in their security advisory system, and it was noted in automated threat intelligence feeds shortly after disclosure. No significant researcher commentary or media coverage has been identified beyond routine CVE publication (Red Hat CVE).