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 via Untrusted Deserialization
Action: Immediate Patch
AI Analysis

Impact

The vulnerability in NVIDIA’s Megatron Bridge permits the deserialization of untrusted data. This flaw, classified as CWE‑502, can be leveraged by an attacker to execute arbitrary code, modify or tamper with data, and disclose sensitive information. The potential impact ranges from compromise of the affected system to broader data breaches should the Bridge interface be exposed externally.

Affected Systems

NVIDIA Megatron Bridge is the affected product. No specific version information is disclosed; therefore, all installations of this bridge are potentially impacted until a patch is applied or mitigated.

Risk and Exploitability

The CVSS score of 7.8 indicates a high severity level. EPSS indicates no available exploitation probability data at this time, and the vulnerability is not listed in the CISA KEV catalog. While the exact attack vector is not specified in the advisory, it is inferred that remote exploitation could be possible through any interface that accepts serialized data, such as network sockets or application APIs. The absence of a publicly documented exploitation pathway suggests that specific prerequisites or configuration settings may affect exploitability, but the high severity score warrants vigilance.

Generated by OpenCVE AI on September 2, 2026 at 01:39 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest vendor patch or firmware update for NVIDIA Megatron Bridge that addresses the deserialization flaw.
  • If no patch is available, block all network ports or interfaces that accept serialized data, or place the bridge behind a firewall and restrict traffic to trusted sources only.
  • Continuously monitor bridge logs for suspicious deserialization attempts, unexpected data patterns, or anomalous activity, and temporarily disable any public-facing APIs that accept serialized input until the vulnerability is fixed.

Generated by OpenCVE AI on September 2, 2026 at 01:39 UTC.

Tracking

Sign in to view the affected projects.

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 02:00:00 +0000

Type Values Removed Values Added
Title Deserialization Vulnerability in NVIDIA Megatron Bridge Enabling Remote Code Execution
First Time appeared Nvidia
Nvidia megatron-bridge
Vendors & Products Nvidia
Nvidia megatron-bridge

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: 2026-09-01T16:28:52.555Z

Reserved: 2026-07-10T19:08:58.085Z

Link: CVE-2026-61766

cve-icon Vulnrichment

Updated: 2026-09-01T16:20:45.472Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-01T16:17:09.747

Modified: 2026-09-02T12:35:20.850

Link: CVE-2026-61766

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-02T01:45:05Z

Weaknesses
  • CWE-502

    Deserialization of Untrusted Data