5.8

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 exploit this vulnerability by sending IPv4 or IPv6 packets using UDP source and destination ports that are assigned to DHCP traffic through an affected device. A successful exploit could allow the attacker to bypass EPG contracts on the affected device.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerCisco
≫
Produkt Cisco NX-OS System Software in ACI Mode
Default Statusunknown
Version 15.2(1g)
Status affected
Version 15.2(2e)
Status affected
Version 15.2(2f)
Status affected
Version 15.2(2g)
Status affected
Version 15.2(2h)
Status affected
Version 15.2(3f)
Status affected
Version 15.2(3e)
Status affected
Version 15.2(3g)
Status affected
Version 15.2(4d)
Status affected
Version 15.2(4e)
Status affected
Version 15.2(5c)
Status affected
Version 15.2(5d)
Status affected
Version 16.0(1g)
Status affected
Version 15.2(5e)
Status affected
Version 15.2(4f)
Status affected
Version 15.2(6e)
Status affected
Version 15.2(6h)
Status affected
Version 16.0(1j)
Status affected
Version 15.2(6g)
Status affected
Version 15.2(7f)
Status affected
Version 15.2(7g)
Status affected
Version 16.0(2h)
Status affected
Version 15.2(8d)
Status affected
Version 16.0(2j)
Status affected
Version 15.2(8e)
Status affected
Version 16.0(3d)
Status affected
Version 16.0(3e)
Status affected
Version 15.2(8f)
Status affected
Version 15.2(8g)
Status affected
Version 15.3(1d)
Status affected
Version 15.2(8h)
Status affected
Version 16.0(4c)
Status affected
Version 15.3(2a)
Status affected
Version 15.2(8i)
Status affected
Version 16.0(5h)
Status affected
Version 15.3(2b)
Status affected
Version 16.0(3g)
Status affected
Version 16.0(5j)
Status affected
Version 15.3(2c)
Status affected
Version 16.0(6c)
Status affected
Version 15.3(2d)
Status affected
Version 16.1(1f)
Status affected
Version 16.0(7e)
Status affected
Version 16.0(8e)
Status affected
Version 15.3(2e)
Status affected
Version 16.0(8f)
Status affected
Version 16.1(2f)
Status affected
Version 16.1(2g)
Status affected
Version 15.3(2f)
Status affected
Version 16.0(9c)
Status affected
Version 16.1(3f)
Status affected
Version 16.0(9d)
Status affected
Version 16.0(6h)
Status affected
Version 16.0(8h)
Status affected
Version 16.1(3g)
Status affected
Version 16.0(9e)
Status affected
Version 16.1(4h)
Status affected
Version 16.1(5e)
Status affected
Version 16.2(1g)
Status affected
Version 16.0(9f)
Status affected
Version 16.2(2e)
Status affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Cisco PSIRT 5.8 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CWE-284 Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aci-epgcbp-SfDU7NLf