EUVD-2026-69321
GHSA-h822-p252-38hx
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local attack vector and low-privilege requirement align with a training framework processing serialized data from authenticated local user context; full CIA impact reflects arbitrary code execution capability.
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 low-privileged attacker to achieve arbitrary code execution, tamper with data, and disclose sensitive information on the affected host. The CVSS 7.8 score with local attack vector and low-privilege requirement indicates an authenticated local user can exploit the flaw without user interaction, fully compromising confidentiality, integrity, and availability. …
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, low-privileged account on the host running Megatron Bridge (AV:L/PR:L per CVSS). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 score reflects high impact across all three security pillars (C:H/I:H/A:H) with low attack complexity and low privilege requirements, but the local attack vector (AV:L) is the primary limiting factor - remote unauthenticated exploitation is not indicated. … 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 | Consult the NVIDIA product security advisory at https://github.com/NVIDIA/product-security/tree/main/2026/5868 for the vendor-released patch and exact fix version, as no explicit patched version was provided in the available intelligence data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all systems running NVIDIA Megatron Bridge and assess which operate in shared or multi-tenant environments; immediately restrict shell access to that infrastructure to trusted administrators only and enable comprehensive audit logging for process execution. …
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 allShare
External POC / Exploit Code
Leaving vuln.today