CVE-2026-61777: CWE-502 Deserialization of Untrusted Data in NVIDIA Megatron Bridge
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.
CVSS v3.1
Score 7.8high
Affected software
NVIDIA
Megatron Bridge
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-61777 is a deserialization of untrusted data vulnerability in NVIDIA Megatron Bridge. An attacker with local access and low privileges can exploit this flaw without user interaction to achieve high impact outcomes including code execution, data tampering, and information disclosure. The vulnerability is classified under CWE-502 and has a CVSS 3.1 base score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). No vendor advisory or patch information is currently available, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation could lead to remote code execution, unauthorized modification of data, and leakage of sensitive information. The attack requires local access with low privileges but no user interaction, making it a significant risk in environments where such access is possible.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict local access to trusted users only and monitor for suspicious activity related to deserialization processes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- nvidia
- Date Reserved
- 2026-07-10T19:12:31.027Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9702f0acd9273b49f51a5f
Added to database: 09/01/2026, 16:53:04 UTC
Last enriched: 09/07/2026, 14:37:38 UTC
Last updated: 10/15/2026, 18:48:21 UTC
Views: 101
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