EUVD-2026-69316
GHSA-v2h2-cvmf-wf42
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local vector and low privilege confirmed by NVIDIA PSIRT; full C/I/A:H reflects code execution enabling complete system compromise within the vulnerable process scope.
Primary rating from Vendor (nvidia).
CVSS VectorVendor: nvidia
Lifecycle Timeline
2DescriptionCVE.org
NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.
Articles & Coverage 2
AnalysisAI
Deserialization of untrusted data in NVIDIA Megatron Bridge allows a local attacker with low-level privileges to achieve code execution, data tampering, and information disclosure on the affected system. The CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H vector indicates exploitation requires only local, low-privileged access with no user interaction, making this a meaningful threat in multi-tenant AI training environments where shared compute access is common. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a local authenticated session with at least low-level OS privileges (PR:L per CVSS vector) on the host running NVIDIA Megatron Bridge - the attacker must have a local shell, process execution capability, or equivalent access. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD CVSS score of 7.8 (High) reflects a complete triad compromise (C:H/I:H/A:H) mitigated by a local attack vector (AV:L) and low-privilege requirement (PR:L). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Patch availability per vendor advisory: check NVIDIA's product security advisory at https://github.com/NVIDIA/product-security/tree/main/2026/5868 for the authoritative fix version, as no exact patched release was specified in the available data - do not apply a version number from this analysis. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all deployments of NVIDIA Megatron Bridge and classify by environment (single-tenant vs. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Nemo Megatron Bridge
View allDeserialization of untrusted data in NVIDIA Megatron Bridge allows a local attacker with low privileges to achieve arbit
Deserialization of untrusted data in NVIDIA Megatron Bridge allows a local attacker with low privileges to achieve arbit
Deserialization of untrusted data in NVIDIA Megatron Bridge allows a local attacker with low-privilege access to achieve
Local code execution in NVIDIA Megatron Bridge exploits unsafe deserialization of attacker-controlled data, allowing a l
Deserialization of untrusted data in NVIDIA Megatron Bridge exposes affected systems to code execution, data tampering,
Deserialization of untrusted data in NVIDIA Megatron Bridge allows a low-privileged local user to achieve arbitrary code
Deserialization of untrusted data in NVIDIA Megatron Bridge allows a local attacker with low privileges to achieve arbit
Deserialization of untrusted data in NVIDIA Megatron Bridge enables a local low-privileged attacker to achieve code exec
Deserialization of untrusted data in NVIDIA Megatron Bridge exposes local users to code execution, data tampering, and i
Deserialization of untrusted data in NVIDIA Megatron Bridge exposes systems to local code execution, data tampering, and
Deserialization of untrusted data in NVIDIA Megatron Bridge allows a local attacker with low privileges to achieve code
Deserialization of untrusted data in NVIDIA Megatron Bridge allows a local attacker with low privileges to achieve full
Same weakness CWE-502 – Deserialization of Untrusted Data
View allSame technique Information Disclosure
View allShare
External POC / Exploit Code
Leaving vuln.today