CVE-2026-76501
published 2026-10-07CVE-2026-76501: A vulnerability in the Segment Routing over IPv6 (SRv6) Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software, known as NGOAM, could…
PriorityP271critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.52%
44.0th percentile
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.
Affected
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VulDB
Cisco NX-OS up to 10.6(3s) NGOAM input validation
vuldb·2026-10-07·CVSS 9.8
CVE-2026-76501 [CRITICAL] Cisco NX-OS up to 10.6(3s) NGOAM input validation
A vulnerability categorized as very critical has been discovered in Cisco NX-OS. Affected by this issue is some unknown functionality of the component NGOAM. Executing a manipulation can lead to improper input validation.
This vulnerability appears as CVE-2026-76501. The attack may be performed from remote. There is no available exploit.
It is advisable to upgrade the affected component.
GHSA
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 attacke
ghsa_unreviewed·2026-10-07
CVE-2026-76501 [CRITICAL] CWE-121 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 attacke
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.
No detection rules found.
No public exploits indexed.
2026-10-07
Published