CVE-2024-20371

Cisco Nexus 3550-F Switches Access Control List Programming Vulnerability

Published Nov 6, 2024 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
A vulnerability in the access control list (ACL) programming of Cisco Nexus 3550-F Switches could allow an unauthenticated, remote attacker to send traffic that should be blocked to the management interface of an affected device.&nbsp;

This vulnerability exists because ACL deny rules are not properly enforced at the time of device reboot. An attacker could exploit this vulnerability by attempting to send traffic to the management interface of an affected device. A successful exploit could allow the attacker to send traffic to the management interface of the affected device.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-18086 A vulnerability in the access control list (ACL) programming of Cisco Nexus 3550-F Switches could allow an unauthenticated, remote attacker to send traffic that should be blocked to the management interface of an affected device.&nbsp; This vulnerability exists because ACL deny rules are not properly enforced at the time of device reboot. An attacker could exploit this vulnerability by attempting to send traffic to the management interface of an affected device. A successful exploit could allow the attacker to send traffic to the management interface of the affected device.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00084}

epss

{'score': 0.00091}

Type Values Removed Values Added
First Time appeared Cisco
Cisco nexus 3550 Firmware
CPEs cpe:2.3:o:cisco:nexus_3550_firmware:*:*:*:*:*:*:*:*
Vendors & Products Cisco
Cisco nexus 3550 Firmware
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A vulnerability in the access control list (ACL) programming of Cisco Nexus 3550-F Switches could allow an unauthenticated, remote attacker to send traffic that should be blocked to the management interface of an affected device.&nbsp; This vulnerability exists because ACL deny rules are not properly enforced at the time of device reboot. An attacker could exploit this vulnerability by attempting to send traffic to the management interface of an affected device. A successful exploit could allow the attacker to send traffic to the management interface of the affected device.
Title Cisco Nexus 3550-F Switches Access Control List Programming Vulnerability
Weaknesses CWE-264
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
cisco
Published
Updated
Nov 6, 2024, 5:23 PM
Reserved
Nov 8, 2023, 3:08 PM
Status
Deferred
Published
Nov 6, 2024, 5:15 PM
Modified
Jun 17, 2026, 7:06 AM