A vulnerability in the VXLAN Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software, known as NGOAM, could allow an… (CVE-2026-76485)
Description
A critical vulnerability exists in the VXLAN Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software, known as NGOAM. This flaw allows an unauthenticated remote attacker to send crafted packets to an affected device, potentially leading to arbitrary code execution with root privileges or causing a denial-of-service (DoS) condition due to process crashes and device reloads.
CVSS v3.1
Score 9.8critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-76485 describes a vulnerability in the NGOAM feature of Cisco NX-OS Software caused by improper input validation of IP traffic when NGOAM is enabled. An attacker can exploit this by sending specially crafted packets to an IP interface on the device, resulting in arbitrary code execution with root privileges or a DoS condition through process crashes and reloads. The vulnerability has a CVSS 3.1 base score of 9.8, indicating critical severity.
Potential Impact
Successful exploitation can lead to full system compromise with root-level code execution or cause the device to crash and reload, resulting in denial of service. This impacts the confidentiality, integrity, and availability of the affected device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch or official fix is available, consider disabling the NGOAM feature if it is not required to reduce exposure.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-cpwq-8jv6-8vg5
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-76485"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac6bff32cdf04f65682908d
Added to database: 10/07/2026, 21:56:03 UTC
Last enriched: 10/07/2026, 22:07:38 UTC
Last updated: 10/08/2026, 02:48:07 UTC
Views: 7
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