CVE-2026-76501

CVE Enrichment

CVSS: 9.8 CRITICAL
EPSS: 0.51%
EPSS Percentile: 41.68%
CISA KEV: Not listed

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: psirt@cisco.com
Published: 08-Oct-2026 00:17
Last Modified: 09-Oct-2026 03:08
EPSS Date: 2026-10-10
CWE: CWE-121

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 08:42
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (2)

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 (Cisco), CVE-2026-76281, CVE-2026-76282, Weekly Cybersecurity Recap Highlights Exploited Atlassian Flaw and Other Threats
CVE-2026-76485, CVE-2026-76486, and CVE-2026-76501: Improper validation of IP traffic can be exploited through crafted packets sent to an IP interface; all three require NGOAM to be enabled. 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.