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CVE-2026-76501

9.8 CRITICAL

Published 2026-10-07 · Updated 2026-10-08

AI risk analysis

Summary
This vulnerability allows unauthenticated attackers to execute arbitrary code with root privileges or cause a denial of service on Cisco NX-OS devices by sending crafted packets.
Exploitability
Exploitation requires crafting and sending specific packets to an enabled IP interface, making it moderately complex but feasible with proper knowledge.
Blast radius
If exploited, the vulnerability could result in complete control of the device or a service outage, impacting network availability and security.
Detection
No reliable host or network indicator is derivable from the published description.
Prioritized remediation
Disable the NGOAM and SRv6 features on affected devices until a patch is available.
rcedosipv6cisconetwork

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

A vulnerability in the Segment Routing over IPv6 (SRv6) 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 and SRv6 features are 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 vector

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

Weaknesses

CWE-121

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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