CVE-2025-33255
CWE-502Published: May 20, 2026· Updated: May 21, 2026
Official Description
NVIDIA TRT-LLM for any platform contains a vulnerability in MPI server, where an attacker could cause an unsafe deserialization. A successful exploit of this vulnerability might lead to code execution, denial of service, data tampering, and information disclosure.
Risk Analysis
This critical vulnerability in NVIDIA TRT-LLM's MPI server allows an attacker to cause unsafe deserialization. Successful exploitation could lead to remote code execution, denial of service, data tampering, and information disclosure. The CVSS score of 9.8 indicates a severe risk.
No public exploit is currently known for this vulnerability. Given the network attack vector and low attack complexity, it is remotely exploitable.
Administrators should apply patches or upgrade NVIDIA TRT-LLM to a version that addresses this flaw as soon as they become available.
Technical Analysis
CVE-2025-33255 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (3)
Quick Facts
Related CVEs (CWE-502)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-33255 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts