EUVD-2026-69323
GHSA-44gg-3mpc-j7rp
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local deserialization requires a low-privileged foothold and data-path write access; no user interaction needed; full CIA impact upon successful code execution within process bounds.
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
Local code execution in NVIDIA Megatron Bridge exploits unsafe deserialization of attacker-controlled data, allowing a low-privileged local user to achieve full process compromise with high confidentiality, integrity, and availability impact. The CVSS 7.8 (High) vector - AV:L/AC:L/PR:L/UI:N - confirms that no network exposure, user interaction, or elevated privileges are required beyond an initial local foothold. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Low-privileged local system access is required - the CVSS vector confirms PR:L and AV:L, meaning the attacker must already have a local foothold on the host running Megatron Bridge. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 High score reflects a locally-exploitable deserialization flaw with low complexity, no user interaction, and full CIA impact - a serious combination in shared-compute environments. … 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 official patch version; no specific fixed version number was present in the available intelligence, so the appropriate characterization is patch available per vendor advisory. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all systems running NVIDIA Megatron Bridge and audit which users have local system access; cross-reference against current personnel and disable access for departed users. …
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Same weakness CWE-502 – Deserialization of Untrusted Data
View allSame technique Information Disclosure
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External POC / Exploit Code
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