EPG Function Cisco NX-OS Security Restriction Bypass

The vulnerability of the EPG function in the Cisco NX-OS operating system of Cisco Nexus 9000 Series Fabric Switches in ACI mode is related to deficiencies in access control. Exploiting this vulnerability could allow a malicious actor to circumvent security restrictions remotely...

CVE-2026-20038

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 contracts. This vulnerability is due to an improper control with EPG contracts. An attacker could exploi...

CVE-2026-20038 Cisco Nexus 9000 Series Fabric Switches in ACI Mode Policy-Based Redirect Endpoint Group Contract Bypass Vulnerability

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 contracts. This vulnerability is due to an improper control with EPG contracts. An attacker could exploi...

CVE-2026-20038 Cisco Nexus 9000 Series Fabric Switches in ACI Mode Policy-Based Redirect Endpoint Group Contract Bypass Vulnerability

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 contracts. This vulnerability is due to an improper control with EPG contracts. An attacker could exploi...

CVE-2026-20038

A vulnerability in the endpoint group (EPG) contract functionality of Cisco Nexus 9000 Series Fabric Switches in ACI Mode allows an unauthenticated, remote attacker to bypass configured EPG contracts. The root cause is an improper control where an attacker can send IPv4 or IPv6 packets using UDP ...

Cisco Nexus 9000 Series Fabric Switches in ACI Mode Endpoint Group Contract Bypass Vulnerability

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 contracts. This vulnerability is due to an improper control with EPG contracts. An attacker could exploi...

PT-2026-107584

Name of the Vulnerable Software and Affected Versions Cisco Nexus 9000 Series Fabric Switches in ACI Mode affected versions not specified Description An improper control within the endpoint group EPG contract functionality allows an unauthenticated remote attacker to bypass configured EPG...

CVE-2026-20038: Improper Access Control

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 contracts. This vulnerability is due to an improper control with EPG contracts. An attacker could exploi...

Cisco Nexus 9000 Series Fabric Switches in ACI Mode Endpoint Group Contract Bypass (cisco-sa-aci-epgcbp-SfDU7NLf)

According to its self-reported version, Cisco NX-OS System Software in ACI Mode is affected by a vulnerability. - 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...

CVE-2026-0869

Authentication bypass in Brocade ASCG 3.4.0 Could allow an unauthorized user to perform ASCG operations related to Brocade Support LinkBSL and streaming configuration. and could even disable the ASCG application or disable use of BSL data collection on Brocade switches within the fabric...

CVE-2026-0869

Authentication bypass in Brocade ASCG 3.4.0 Could allow an unauthorized user to perform ASCG operations related to Brocade Support LinkBSL and streaming configuration. and could even disable the ASCG application or disable use of BSL data collection on Brocade switches within the fabric...

CVE-2026-20033: Buffer Access with Incorrect Length Value

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 vulnerability is due to insufficient validation when processing specific Ethernet frames. An attacker cou...

CVE-2026-20048: Memory Allocation with Excessive Size Value

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 service DoS condition on an affected device. This vulnerability is due to improper processing when...

EUVD-2021-7050

Malicious code in bioql PyPI...

Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Filter Query Information Disclosure (CVE-2019-1587)

A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an authenticated, remote attacker to access sensitive information. The vulnerability occurs because the affected software does not properly validate user-supplied input. An attack...

Cisco Nexus 9000 Series Fabric Switches in ACI Mode Link Layer Discovery Protocol Memory Leak Denial of Service (CVE-2023-20089)

A vulnerability in the Link Layer Discovery Protocol LLDP feature for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI Mode could allow an unauthenticated, adjacent attacker to cause a memory leak, which could result in an unexpected reload of the device. This...

Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Unmeasured Boot (CVE-2019-1589)

A vulnerability in the Trusted Platform Module TPM functionality of software for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an unauthenticated, local attacker with physical access to view sensitive information on an affected device. The...

Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service (CVE-2021-1523)

A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in...

Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Insecure Fabric Authentication (CVE-2019-1590)

A vulnerability in the Transport Layer Security TLS certificate validation functionality of Cisco Nexus 9000 Series Application Centric Infrastructure ACI Mode Switch Software could allow an unauthenticated, remote attacker to perform insecure TLS client authentication on an affected device. The...

Cisco Nexus 9000 Series Fabric Switches ACI Mode Fabric Infrastructure VLAN Unauthorized Access (CVE-2021-1228)

A vulnerability in the fabric infrastructure VLAN connection establishment of Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI Mode could allow an unauthenticated, adjacent attacker to bypass security validations and connect an unauthorized server to the...