CVE-2026-76453 Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Neutralization Vulnerabilities

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The...

EUVD-2026-94449

A vulnerability in Cisco NX-OS Software could allow an unauthenticated, remote attacker to exhaust system resources, causing a denial of service DoS condition. This vulnerability exists because rate limiting was improperly applied to some protocols. An attacker could exploit this vulnerability by...

CVE-2026-20173 Cisco NX-OS Software Denial of Service Vulnerability

A vulnerability in Cisco NX-OS Software could allow an unauthenticated, remote attacker to exhaust system resources, causing a denial of service DoS condition. This vulnerability exists because rate limiting was improperly applied to some protocols. An attacker could exploit this vulnerability by...

CVE-2026-20173

A vulnerability in Cisco NX-OS Software allows an unauthenticated, remote attacker to cause a denial of service (DoS) condition by exhausting system resources. The root cause is that rate limiting was improperly applied to certain protocols. An attacker can exploit this by sending a high rate of ...

CVE-2026-20173 Cisco NX-OS Software Denial of Service Vulnerability

A vulnerability in Cisco NX-OS Software could allow an unauthenticated, remote attacker to exhaust system resources, causing a denial of service DoS condition. This vulnerability exists because rate limiting was improperly applied to some protocols. An attacker could exploit this vulnerability by...

CVE-2026-20032

A vulnerability in the Python interpreter of Cisco NX-OS Software allows an authenticated, local attacker with low privileges to escape the Python sandbox . The root cause is insufficient validation of user-supplied input , which can be exploited by manipulating specific functions within the inte...

EUVD-2026-94447

A vulnerability in the Python interpreter of Cisco NX-OS Software could allow an authenticated, local attacker with low privileges to escape the Python sandbox and gain unauthorized access to the underlying operating system of an affected device. This vulnerability is due to insufficient validati...

CVE-2026-20032 Cisco NX-OS Software Python Sandbox Escape Vulnerability

A vulnerability in the Python interpreter of Cisco NX-OS Software could allow an authenticated, local attacker with low privileges to escape the Python sandbox and gain unauthorized access to the underlying operating system of an affected device. This vulnerability is due to insufficient validati...

CVE-2026-20032 Cisco NX-OS Software Python Sandbox Escape Vulnerability

A vulnerability in the Python interpreter of Cisco NX-OS Software could allow an authenticated, local attacker with low privileges to escape the Python sandbox and gain unauthorized access to the underlying operating system of an affected device. This vulnerability is due to insufficient validati...

Cisco Nexus 3000 and 9000 Series Switches MPLS OAM Remote Code Execution Vulnerability

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...

Cisco NX-OS Software Control Plane Denial of Service Vulnerability

A vulnerability in Cisco NX-OS Software could allow an unauthenticated, remote attacker to exhaust system resources, causing a denial of service DoS condition. This vulnerability exists because rate limiting was improperly applied to some protocols. An attacker could exploit this vulnerability by...

Cisco NX-OS Software Security Hardening Release: October 2026

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. These...

Cisco NX-OS Software Python Sandbox Escape Vulnerability

A vulnerability in the Python interpreter of Cisco NX-OS Software could allow an authenticated, local attacker with low privileges to escape the Python sandbox and gain unauthorized access to the underlying operating system of an affected device. This vulnerability is due to insufficient validati...

Cisco NX-OS Software NX-API Remote Code Execution Vulnerability

A vulnerability in the NX-API feature of Cisco NX-OS Software 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. The vulnerability is due to insufficient input validation of data that is...

Cisco Nexus 3000 and 9000 Series Switches NGOAM Remote Code Execution Vulnerabilities

Multiple vulnerabilities in the Operation, Administration, and Maintenance OAM feature of Cisco NX-OS Software, known as Next Generation OAM NGOAM, could allow an unauthenticated, remote attacker to execute arbitrary code with root privileges or cause a denial of service DoS condition on an...

PT-2026-107585

A vulnerability in Cisco NX-OS Software could allow an unauthenticated, remote attacker to exhaust system resources, causing a denial of service DoS condition. This vulnerability exists because rate limiting was improperly applied to some protocols. An attacker could exploit this vulnerability by...

PT-2026-107601

Name of the Vulnerable Software and Affected Versions Cisco NX-OS affected versions not specified Description An out-of-bounds write issue exists in the software. An out-of-bounds write occurs when a program writes data past the end of the intended buffer, which can lead to memory corruption...

PT-2026-107597

Name of the Vulnerable Software and Affected Versions Cisco NX-OS affected versions not specified Description Improper access control issues exist within the software, which are categorized under Common Weakness Enumeration CWE CWE-284. This refers to a situation where the software does not...

PT-2026-107599

Name of the Vulnerable Software and Affected Versions Cisco NX-OS affected versions not specified Description An out-of-bounds read issue exists within the software. An out-of-bounds read occurs when the system reads data past the end or before the beginning of the intended buffer, which can lead...

Cisco NX-OS Software Control Plane DoS (cisco-sa-nxos-nscpdos-SnderkC7)

According to its self-reported version, Cisco NX-OS Software is affected by a vulnerability. - A vulnerability in Cisco NX-OS Software could allow an unauthenticated, remote attacker to exhaust system resources, causing a denial of service DoS condition. This vulnerability exists because rate...