🔐 CVE Alert

CVE-2026-76485

CRITICAL 9.8

Cisco Nexus 3000 and 9000 Series Switches VXLAN OAM (NGOAM) Remote Code Execution Vulnerability

CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

A vulnerability in the VXLAN Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software, known as NGOAM, could allow an unauthenticated, remote attacker to execute arbitrary code with root privileges or cause a Denial-of-Service (DoS) on an affected device. This vulnerability is due to improper input validation of IP traffic when the NGOAM feature is enabled. An attacker could exploit this vulnerability by sending crafted packets to an IP interface on an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges and could cause process crashes resulting in a reload and DoS condition.

CWE CWE-121
Vendor cisco
Product cisco nx-os software
Ecosystems
Industries
NetworkingTelecommunications
Published Oct 7, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

Cisco / Cisco NX-OS Software
9.2(3) 9.2(2v) 9.2(1) 9.2(2t) 9.2(3y) 9.3(2) 9.2(4) 9.3(1) 9.3(1z) 9.2(2) 9.3(3) 9.3(4) 9.3(5) 9.3(6) 9.3(5w) 9.3(7) 9.3(7k) 9.3(7a) 9.3(8) 9.3(9) 9.3(10) 10.3(1) 10.3(2) 9.3(11) 10.3(3) 9.3(12) 10.4(1) 10.3(99w) 10.3(3w) 10.3(99x) 10.3(3o) 10.3(4) 10.3(3p) 10.3(4a) 10.4(2) 10.3(3q) 9.3(13) 10.3(5) 10.4(3) 10.3(3x) 10.3(4g) 10.5(1) 10.3(3r) 10.3(6) 9.3(14) 10.4(4) 10.3(4h) 10.5(2) 10.3(7) 10.4(5) 10.5(3) 9.3(15) 10.4(4g) 10.5(4) 10.6(1) 10.5(3t) 10.3(8) 10.4(6) 10.5(3s) 10.5(3e) 10.5(3o) 9.3(16) 10.6(1s) 10.6(2) 10.5(3p) 10.3(9) 10.6(2s) 10.6(3) 10.4(7) 10.5(5) 9.3(17) 10.6(2n) 10.6(3s)

References

NVD ↗ CVE.org ↗ EPSS Data ↗
sec.cloudapps.cisco.com: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ngoam-rce-LWKQ4BU