CVE-2026-76465

CRITICAL

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...

Affects 0 products across 1 vendor.

CVSS 3.19.8
EPSS0.4%
Percentile37th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-590: CWE-590
◆ AI Analysis — automated analysis, not human-reviewed

A critical severity vulnerability (CVE-2026-76465) affects the target system. 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 arbitrar...

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Frequently Asked Questions
What is CVE-2026-76465?
A critical severity vulnerability (CVE-2026-76465) affects the target system. 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 arbitrar...
What is the CVSS score for CVE-2026-76465?
CVE-2026-76465 has CVSS 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS: 0.4%.
Is CVE-2026-76465 actively exploited?
No confirmed active exploitation of CVE-2026-76465 as of 2026-10-11.
How do I remediate CVE-2026-76465?
Apply vendor patches for CVE-2026-76465. Monitor Cisco advisories.
What systems are affected by CVE-2026-76465?
CVE-2026-76465 affects: Cisco.
Vulnerability Details
CVE IDCVE-2026-76465
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2026-10-07
Last Modified2026-10-08
ICS Relevance55%
Weakness (CWE)
CWE-590
SourceNVD
Official 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.

Source: NIST NVD / MITRE CVE Database

Affected Products
VendorProductAffected Versions
Cisco — —
Remediation

No patch URL on record. Monitor vendor security advisories directly.

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 3 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
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