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7.8

NVIDIA Megatron Bridge may let attackers run code

CVE-2026-61776 · published 2 months ago
Summary

The Megatron Bridge component in NVIDIA systems can be fooled into processing malicious data, which could let an attacker run their own programs, change information, or see sensitive data. This risk occurs when the component receives data from untrusted sources. Apply any patches provided by NVIDIA and restrict access to the component from untrusted networks.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
nvidia megatron bridge 0.0 to 0.5.0
Original advisory text
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 tamp...
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.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
7.8 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-502Deserialization of Untrusted Data
Timeline
Published1 Sep 2026
Updated4 Nov 2026
First seen1 Sep 2026
Sources
CVE-2026-61776 · NVD
CVE-2026-61776 · MITRE
CVE-2026-61776 · OSV
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