CVE-2025-33243: NVIDIA NeMo Framework · Deserialization of Untrusted Data
Affects NVIDIA NeMo FrameworkSource CVE Database V5
Not known to be exploited · CVSS 7.8 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 16% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 18 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| NVIDIANeMo Framework | Affected
| Fixed in– |
AI-suggested
To mitigate CVE-2025-33243, organizations should immediately upgrade the NVIDIA NeMo Framework to version 2.6.1 or later where the vulnerability is fixed. Until the upgrade is possible, restrict access to systems running NeMo to trusted users only and enforce strict access controls and monitoring in distributed environments. Implement network segmentation to isolate AI infrastructure from less trusted networks and users. Employ application whitelisting and runtime protection to detect and block suspicious deserialization activities. Conduct regular audits of user privileges and remove unnecessary local access rights to minimize the risk of exploitation. Additionally, monitor logs and system behavior for anomalies indicative of exploitation attempts. Educate developers and system administrators about the risks of deserialization vulnerabilities and encourage secure coding and deployment practices. Finally, maintain up-to-date backups of AI models and data to enable recovery in case of compromise.
Description
NVIDIA NeMo Framework contains a vulnerability where an attacker could cause remote code execution in distributed environments. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, information disclosure, and data tampering.