Cisco NX-OS System Software In ACI Mode vulnerabilities

13 CVEs affecting Cisco NX-OS System Software In ACI Mode, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-76459, published 2026-10-07.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2025-20292, published 2025-08-27. Medium severity, CVSS 4.4. EPSS: 3.2% chance of exploitation in the next 30 days. A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to execute a command injection attack on the underlying operating system of an affected device. To…
CVE-2026-76453, published 2026-10-07. High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days. 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…
CVE-2026-20048, published 2026-02-25. High severity, CVSS 7.7. EPSS: 0.3% chance of exploitation in the next 30 days. A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an authenticated, remote attacker to cause a denial of…
CVE-2026-76459, published 2026-10-07. Critical severity, CVSS 9.8. EPSS: 0.3% chance of exploitation in the next 30 days. 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…
CVE-2026-20038, published 2026-10-07. Medium severity, CVSS 5.8. EPSS: 0.3% chance of exploitation in the next 30 days. A vulnerability in the endpoint group (EPG) contract functionality of Cisco Nexus 9000 Series Fabric Switches in ACI Mode could allow an unauthenticated, remote attacker to bypass configured EPG…
CVE-2024-20397, published 2024-12-04. Medium severity, CVSS 5.2. EPSS: 0.3% chance of exploitation in the next 30 days. A vulnerability in the bootloader of Cisco NX-OS Software could allow an unauthenticated attacker with physical access to an affected device, or an authenticated, local attacker with administrative…
CVE-2026-76455, published 2026-10-07. Critical severity, CVSS 9.8. EPSS: 0.3% chance of exploitation in the next 30 days. 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…
CVE-2026-76458, published 2026-10-07. High severity, CVSS 8.6. EPSS: 0.3% chance of exploitation in the next 30 days. 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…
CVE-2026-76457, published 2026-10-07. High severity, CVSS 8.6. EPSS: 0.3% chance of exploitation in the next 30 days. 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…
CVE-2026-76456, published 2026-10-07. High severity, CVSS 8.6. EPSS: 0.3% chance of exploitation in the next 30 days. 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…

Latest

CVE-2026-20033, published 2026-02-25. High severity, CVSS 7.4. EPSS: 0.2% chance of exploitation in the next 30 days. A vulnerability in Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This…
CVE-2026-20010, published 2026-02-25. High severity, CVSS 7.4. EPSS: 0.2% chance of exploitation in the next 30 days. A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the LLDP process to restart, which could cause…