CVE-2024-20291

MEDIUM

5.8

CVSS Score

Published: February 28, 2024 at 04:16 PM UTC

Updated: June 17, 2026 at 07:06 AM UTC

81 products affected across 1 vendorNx OSNexus 9508Nexus 93120Tx

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Severity

MEDIUM5.8

Exploit prediction

EPSS 0.9%

SSVC

No known exploit

Description

A vulnerability in the access control list (ACL) programming for port channel subinterfaces of Cisco Nexus 3000 and 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, remote attacker to send traffic that should be blocked through an affected device. This vulnerability is due to incorrect hardware programming that occurs when configuration changes are made to port channel member ports. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to access network resources that should be protected by an ACL that was applied on port channel subinterfaces.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Nx OS · Cisconpm

95%

9.3(10)9.3(11)9.3(12)

cisco-nexus-3000-in-standalone-nx-os-mode (environment) · cisco-nexus-3048 (environment) · cisco-nexus-31108pc-v (environment) · cisco-nexus-31108tc-v (environment) · cisco-nexus-31128pq (environment) · cisco-nexus-3132c-z (environment) · cisco-nexus-3132q-v (environment) · cisco-nexus-3132q-xl (environment) · cisco-nexus-3164q (environment) · cisco-nexus-3172pq (environment) · cisco-nexus-3172pq-xl (environment) · cisco-nexus-3172tq (environment) · cisco-nexus-3172tq-32t (environment) · cisco-nexus-3172tq-xl (environment) · cisco-nexus-3232c (environment) · cisco-nexus-3264c-e (environment) · cisco-nexus-3264q (environment) · cisco-nexus-3408-s (environment) · cisco-nexus-34180yc (environment) · cisco-nexus-34200yc-sm (environment) · cisco-nexus-3432d-s (environment) · cisco-nexus-3464c (environment) · cisco-nexus-3524-x (environment) · cisco-nexus-3524-xl (environment) · cisco-nexus-3548-x (environment) · cisco-nexus-3548-xl (environment) · cisco-nexus-36180yc-r (environment) · cisco-nexus-9000-in-standalone-nx-os-mode (environment) · cisco-nexus-9000v (environment) · cisco-nexus-92160yc-x (environment) · cisco-nexus-92300yc (environment) · cisco-nexus-92304qc (environment) · cisco-nexus-92348gc-fx3 (environment) · cisco-nexus-92348gc-x (environment) · cisco-nexus-9236c (environment) · cisco-nexus-9272q (environment) · cisco-nexus-93108tc-ex (environment) · cisco-nexus-93108tc-ex-24 (environment) · cisco-nexus-93108tc-fx (environment) · cisco-nexus-93108tc-fx-24 (environment) · cisco-nexus-93108tc-fx3 (environment) · cisco-nexus-93108tc-fx3h (environment) · cisco-nexus-93108tc-fx3p (environment) · cisco-nexus-93120tx (environment) · cisco-nexus-9316d-gx (environment) · cisco-nexus-93180lc-ex (environment) · cisco-nexus-93180yc-ex (environment) · cisco-nexus-93180yc-ex-24 (environment) · cisco-nexus-93180yc-fx (environment) · cisco-nexus-93180yc-fx-24 (environment) · cisco-nexus-93180yc-fx3 (environment) · cisco-nexus-93180yc-fx3h (environment) · cisco-nexus-93180yc-fx3s (environment) · cisco-nexus-93216tc-fx2 (environment) · cisco-nexus-93240yc-fx2 (environment) · cisco-nexus-9332c (environment) · cisco-nexus-9332d-gx2b (environment) · cisco-nexus-9332d-h2r (environment) · cisco-nexus-9332pq (environment) · cisco-nexus-93360yc-fx2 (environment) · cisco-nexus-9336c-fx2 (environment) · cisco-nexus-9336c-fx2-e (environment) · cisco-nexus-9336pq-aci-spine (environment) · cisco-nexus-93400ld-h1 (environment) · cisco-nexus-9348d-gx2a (environment) · cisco-nexus-9348gc-fx3 (environment) · cisco-nexus-9348gc-fxp (environment) · cisco-nexus-93600cd-gx (environment) · cisco-nexus-9364c (environment) · cisco-nexus-9364c-gx (environment) · cisco-nexus-9364c-h1 (environment) · cisco-nexus-9364d-gx2a (environment) · cisco-nexus-9364e-sg2 (environment) · cisco-nexus-9372px-e (environment) · cisco-nexus-9372tx-e (environment) · cisco-nexus-9396tx (environment) · cisco-nexus-9408 (environment) · cisco-nexus-9508 (environment) · cisco-nexus-9804 (environment) · cisco-nexus-9808 (environment)

Nexus 3000 In Standalone Nx-Os Mode · Ciscodevice

80%

All versions

Nexus 3048 · Ciscodevice

80%

All versions

Nexus 31108Pc-V · Ciscodevice

80%

All versions

Nexus 31108Tc-V · Ciscodevice

80%

All versions