5.3

CVE-2025-20316

A vulnerability in the access control list (ACL) programming of Cisco IOS XE Software for Cisco Catalyst 9500X and 9600X Series Switches could allow an unauthenticated, remote attacker to bypass a configured ACL on an affected device.

 This vulnerability is due to the flooding of traffic from an unlearned MAC address on a switch virtual interface (SVI) that has an egress ACL applied. An attacker could exploit this vulnerability by causing the VLAN to flush its MAC address table. This condition can also occur if the MAC address table is full. A successful exploit could allow the attacker to bypass an egress ACL on an affected device.

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
This information is available to logged-in users.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
VendorCisco
≫
Product Cisco IOS XE Software
Version 17.7.1
Status affected
Version 17.10.1
Status affected
Version 17.10.1b
Status affected
Version 17.8.1
Status affected
Version 17.9.1
Status affected
Version 17.9.2
Status affected
Version 17.9.3
Status affected
Version 17.9.4
Status affected
Version 17.9.5
Status affected
Version 17.9.4a
Status affected
Version 17.9.6
Status affected
Version 17.9.6a
Status affected
Version 17.9.7
Status affected
Version 17.11.1
Status affected
Version 17.12.1
Status affected
Version 17.12.2
Status affected
Version 17.12.3
Status affected
Version 17.12.4
Status affected
Version 17.12.5
Status affected
Version 17.13.1
Status affected
Version 17.14.1
Status affected
Version 17.15.1
Status affected
Version 17.15.2
Status affected
Version 17.15.3
Status affected
Version 17.15.2b
Status affected
Version 17.16.1
Status affected
Version 17.17.1
Status affected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.03% 0.072
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
psirt@cisco.com 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.