CVE-2026-76465

CVE Enrichment

CVSS: 9.8 CRITICAL
EPSS: 0.45%
EPSS Percentile: 37.05%
CISA KEV: Not listed

Description

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: psirt@cisco.com
Published: 08-Oct-2026 00:16
Last Modified: 09-Oct-2026 03:08
EPSS Date: 2026-10-10
CWE: CWE-590

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:N /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

References

psirt@cisco.com

Last enrichment sync: 11-Oct-2026 08:45
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (2)

CVEs, CVE-2026-76482, CVE-2026-76480, CVE-2026-76483, CVE-2026-76455, CVE-2026-76459, CVE-2026-76471, CVE-2026-76465, CVE-2026-76485, CVE-2026-76486, CVE-2026-76501, CVE-2026-76498, CVE-2026-76499, CVE-2026-76500 Weekly Cybersecurity Recap Highlights Exploited Atlassian Flaw and Other Threats
CVE-2026-76465: Improper validation of MPLS echo-request packets allows exploitation through a crafted request sent to an affected device’s IP address. Cisco warns of five critical flaws that could let attackers take over Nexus switches

CVE (53)

Vendors (2)

Products (15)

Tools (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.