Description
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.
Published: 2026-09-01
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

The vulnerability allows an attacker to trigger a deserialization of untrusted data within the NVIDIA Megatron Bridge. Deserialization of crafted payloads can lead to code execution, data tampering, and information disclosure. This weakness is a classic instance of insecure deserialization (CWE-502).

Affected Systems

The NVIDIA Megatron Bridge hardware component is affected. No specific version information was provided; all released versions are presumed vulnerable.

Risk and Exploitability

The CVSS score of 7.8 indicates high severity. EPSS is not available, so the current exploitation probability is unknown, and the vulnerability is not listed in CISA KEV, suggesting no publicly documented exploits yet. Based on the description, a successful exploit would require an attacker to provide malicious serialized data to the bridge; the exact attack vector (local or remote) is not disclosed, so the exploit path is inferred to involve either local access or remote exposure of the bridge interface, which is not specified.

Generated by OpenCVE AI on September 2, 2026 at 00:56 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the vendor‑provided firmware patch or software update released by NVIDIA for the Megatron Bridge as soon as it is available.
  • Configure the bridge to reject or validate incoming serialized data, ensuring that only trusted sources are allowed to send requests.
  • Monitor the bridge’s logs for unusual deserialization activity and maintain an audit trail to detect potential exploitation attempts.

Generated by OpenCVE AI on September 2, 2026 at 00:56 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 02 Sep 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Nvidia nemo Megatron Bridge
CPEs cpe:2.3:a:nvidia:nemo_megatron_bridge:*:*:*:*:*:*:*:*
Vendors & Products Nvidia nemo Megatron Bridge

Wed, 02 Sep 2026 04:15:00 +0000

Type Values Removed Values Added
First Time appeared Nvidia
Nvidia megatron-bridge
Vendors & Products Nvidia
Nvidia megatron-bridge

Wed, 02 Sep 2026 01:15:00 +0000

Type Values Removed Values Added
Title Deserialization Vulnerability in NVIDIA Megatron Bridge Allows Code Execution

Tue, 01 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Description 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.
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Nvidia Megatron-bridge Nemo Megatron Bridge
cve-icon MITRE

Status: PUBLISHED

Assigner: nvidia

Published:

Updated: 2026-09-01T16:28:51.831Z

Reserved: 2026-07-10T19:12:31.026Z

Link: CVE-2026-61772

cve-icon Vulnrichment

Updated: 2026-09-01T16:20:34.168Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-01T16:17:10.667

Modified: 2026-09-02T12:32:08.393

Link: CVE-2026-61772

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-02T04:00:08Z

Weaknesses
  • CWE-502

    Deserialization of Untrusted Data