🔐 CVE Alert

CVE-2026-76465

CRITICAL 9.8

Cisco Nexus 3000 and 9000 Series Switches MPLS OAM Remote Code Execution Vulnerability

CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-590
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
9.3(2) 9.3(1) 9.3(1z) 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-moam-rce-uBTzYV7