EUVD-2026-41041
GHSA-44fq-8xx2-5f52
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from Vendor (nvidia) · only source for this CVE.
CVSS VectorVendor: nvidia
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
Articles & Coverage 1
AnalysisAI
Arbitrary code execution in NVIDIA Megatron Bridge (all versions per the NVIDIA advisory) arises from unsafe deserialization of untrusted data (CWE-502), where an attacker supplies a crafted serialized object — typically a malicious model checkpoint or configuration artifact — that a user loads locally, yielding code execution, privilege escalation, data tampering, and information disclosure. The CVSS 3.1 base score is 7.8 (High) with a local vector requiring user interaction (AV:L/UI:R) and no attacker privileges. …
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Recommended ActionAI
Within 24 hours: Inventory all NVIDIA Megatron Bridge deployments and audit the origin of all currently-loaded model checkpoints; document which teams and individuals have the capability to load external models. …
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Same weakness CWE-502 – Deserialization of Untrusted Data
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External POC / Exploit Code
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