CVE-2026-76465 — Cisco Nexus 3000 and 9000 Series Switches MPLS OAM Remote Code Execution Vulnerability

Description (CNA)

A vulnerability in the MPLS Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software for Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute arbitrary code with root privileges or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper validation when an affected device is processing an MPLS echo-request packet. An attacker could exploit this vulnerability by sending a crafted MPLS echo-request to an IP address on an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges and could cause process crashes, which could result in a device reload and a DoS condition.

Affected (CNA)

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

Vendor / product

Versions

Cisco / Cisco NX-OS Software

affected 9.3(2); affected 9.3(1); affected 9.3(1z); affected 9.3(3); affected 9.3(4); affected 9.3(5); affected 9.3(6); affected 9.3(5w); affected 9.3(7); affected 9.3(7k); affected 9.3(7a); affected 9.3(8); affected 9.3(9); affected 9.3(10); affected 10.3(1); affected 10.3(2); affected 9.3(11); affected 10.3(3); affected 9.3(12); affected 10.4(1); affected 10.3(99w); affected 10.3(3w); affected 10.3(99x); affected 10.3(3o); affected 10.3(4); affected 10.3(3p); affected 10.3(4a); affected 10.4(2); affected 10.3(3q); affected 9.3(13); affected 10.3(5); affected 10.4(3); affected 10.3(3x); affected 10.3(4g); affected 10.5(1); affected 10.3(3r); affected 10.3(6); affected 9.3(14); affected 10.4(4); affected 10.3(4h); affected 10.5(2); affected 10.3(7); affected 10.4(5); affected 10.5(3); affected 9.3(15); affected 10.4(4g); affected 10.5(4); affected 10.6(1); affected 10.5(3t); affected 10.3(8); affected 10.4(6); affected 10.5(3s); affected 10.5(3e); affected 10.5(3o); affected 9.3(16); affected 10.6(1s); affected 10.6(2); affected 10.5(3p); affected 10.3(9); affected 10.6(2s); affected 10.6(3); affected 10.4(7); affected 10.5(5); affected 9.3(17); affected 10.6(2n); affected 10.6(3s)

CWE

CWE-590

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-moam-rce-uBTzYV7

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.