Advisories · Technology

Cisco NX-OS System Software in ACI Mode.

Every CVE that names Cisco NX-OS System Software in ACI Mode among its affected products, newest first. Vendors and products are as the CNA wrote them; check the affected versions on each record.

CVE-2026-76458 CVE record

CVSS 8.6 High

Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Handling of Exceptional Conditions Vulnerabilities
- Cisco NX-OS Software
- Cisco NX-OS System Software in ACI Mode
- CWE-703
Not analysed yet 7 Oct 2026
CVE-2026-76459 CVE record

CVSS 9.8 CriticalCritical · CVSS 9+

Cisco NX-OS Software Security Hardening Release: October 2026 - Out-of-bounds Write Vulnerabilities
- Cisco NX-OS Software
- Cisco NX-OS System Software in ACI Mode
- Memory corruption
Not analysed yet 7 Oct 2026
CVE-2026-76455 CVE record

CVSS 9.8 CriticalCritical · CVSS 9+

Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Access Control Vulnerabilities
- Cisco NX-OS Software
- Cisco NX-OS System Software in ACI Mode
- Broken access control
Not analysed yet 7 Oct 2026
CVE-2026-76457 CVE record

CVSS 8.6 High

Cisco NX-OS Software Security Hardening Release: October 2026 - Out-of-bounds Read Vulnerabilities
- Cisco NX-OS Software
- Cisco NX-OS System Software in ACI Mode
- Memory corruption
Not analysed yet 7 Oct 2026
CVE-2026-76456 CVE record

CVSS 8.6 High

Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Input Validation Vulnerabilities
- Cisco NX-OS Software
- Cisco NX-OS System Software in ACI Mode
- CWE-20
Not analysed yet 7 Oct 2026
CVE-2026-76453 CVE record

CVSS 8.8 High

Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Neutralization Vulnerabilities
- Cisco NX-OS Software
- Cisco NX-OS System Software in ACI Mode
- CWE-707
Not analysed yet 7 Oct 2026
CVE-2026-20038 CVE record

CVSS 5.8 Medium

Cisco Nexus 9000 Series Fabric Switches in ACI Mode Policy-Based Redirect Endpoint Group Contract Bypass Vulnerability
- Cisco NX-OS System Software in ACI Mode
- Broken access control
Not analysed yet 7 Oct 2026
CVE-2026-20033 CVE record

CVSS 7.4 High

Cisco NX-OS Software Denial of Service Vulnerability
- Cisco NX-OS System Software in ACI Mode
- Memory corruption
Not analysed yet 25 Feb 2026
CVE-2026-20048 CVE record

CVSS 7.7 High

Cisco NX-OS Software SNMP Denial of Service Vulnerability
- Cisco NX-OS System Software in ACI Mode
- Denial of service
Not analysed yet 25 Feb 2026
CVE-2026-20010 CVE record

CVSS 7.4 High

Cisco Nexus 3000 and 9000 Series Switches Link Layer Discovery Protocol Denial of Service Vulnerability
- Cisco NX-OS Software
- Cisco NX-OS System Software in ACI Mode
- Memory corruption
Not analysed yet 25 Feb 2026
CVE-2025-20292 CVE record

CVSS 4.4 Medium

Cisco NXOS Software Command Injection Vulnerability
- Cisco NX-OS Software
- Cisco NX-OS System Software in ACI Mode
- Command injection
Not analysed yet 27 Aug 2025
CVE-2024-20397 CVE record

CVSS 5.2 Medium

Cisco NX-OS Software Image Verification Bypass Vulnerability
- Cisco NX-OS Software
- Cisco NX-OS System Software in ACI Mode
- Broken access control
Not analysed yet 4 Dec 2024
CVE-2024-20289 CVE record

CVSS 4.4 Medium

Cisco NX-OS Software Command Injection Vulnerability
- Cisco NX-OS Software
- Cisco NX-OS System Software in ACI Mode
- Command injection
Not analysed yet 28 Aug 2024
CVE-2024-20294 CVE record

CVSS 6.6 Medium

Cisco NX-OS Software: A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco FXOS…
- Cisco NX-OS Software
- Cisco Unified Computing System (Managed)
- Memory corruption
Not analysed yet 28 Feb 2024
CVE-2023-20185 CVE record

CVSS 7.4 High

Insufficiently random values in Cisco NX-OS System Software in ACI Mode
- Cisco NX-OS System Software in ACI Mode
- Weak cryptography or TLS
Not analysed yet 12 Jul 2023
CVE-2023-20089 CVE record

CVSS 7.4 High

Cisco Nexus 9000 Series Fabric Switches in ACI Mode Link Layer Discovery Protocol Memory Leak Denial of Service Vulnerability
- Cisco NX-OS System Software in ACI Mode
- Denial of service
Not analysed yet 23 Feb 2023
CVE-2021-1586 CVE record

CVSS 8.6 High

Cisco Nexus 9000 Series Fabric Switches ACI Mode Multi-Pod and Multi-Site TCP Denial of Service Vulnerability
- Cisco NX-OS System Software in ACI Mode
- CWE-345
Not analysed yet 25 Aug 2021
CVE-2021-1584 CVE record

CVSS 6.0 Medium

Cisco Nexus 9000 Series Fabric Switches ACI Mode Privilege Escalation Vulnerability
- Cisco NX-OS System Software in ACI Mode
- Command injection
Not analysed yet 25 Aug 2021
CVE-2021-1583 CVE record

CVSS 4.4 Medium

Cisco Nexus 9000 Series Fabric Switches ACI Mode Arbitrary File Read Vulnerability
- Cisco NX-OS System Software in ACI Mode
- Broken access control
Not analysed yet 25 Aug 2021
CVE-2021-1523 CVE record

CVSS 8.6 High

Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability
- Cisco NX-OS System Software in ACI Mode
- Denial of service
Not analysed yet 25 Aug 2021
CVE-2021-1231 CVE record

CVSS 4.7 Medium

Cisco Nexus 9000 Series Fabric Switches ACI Mode Link Layer Discovery Protocol Port Denial of Service Vulnerability
- Cisco NX-OS System Software in ACI Mode
- Broken access control
Not analysed yet 24 Feb 2021
CVE-2021-1230 CVE record

CVSS 8.6 High

Cisco Nexus 9000 Series Fabric Switches ACI Mode BGP Route Installation Denial of Service Vulnerability
- Cisco NX-OS System Software in ACI Mode
- CWE-233
Not analysed yet 24 Feb 2021