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Critical 9.8Published Oct 7, 2026

CVE-2026-76485Cisco Nexus 3000 and 9000 Series Switches VXLAN OAM (NGOAM) Remote Code Execution Vulnerability

Updated under an hour ago ()

Does this affect you?

It affects Cisco NX-OS Software. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.51%, higher than 42% of scored CVEs.

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.

CVSS
9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-121
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
0.51% (percentile 42)
Assigned by
cisco
NVD analysis
Awaiting Analysis
Record last updated
Oct 8, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Cisco Cisco NX-OS Software
cisco:nx_os_software (from the name)
9.2(3); 9.2(2v); 9.2(1); 9.2(2t); 9.2(3y); 9.3(2); 9.2(4); 9.3(1); and 65 more ranges
CNA record

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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