CyberCVE

CVE-2025-20144

Cisco IOS XR Software Access Control List Bypass Vulnerability

Severity
Medium 4
CVSS 3.1
Exploited
Not listed
EPSS
0.003
24.6th percentile
Discovered by
Vendor
Published by the vendor
Published
Mar 12, 2025
Assigned by cisco

Description

A vulnerability in the hybrid access control list (ACL) processing of IPv4 packets in Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to incorrect handling of packets when a specific configuration of the hybrid ACL exists. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass a configured ACL on the affected device. For more information, see the section of this advisory. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.

Weakness: CWE-284

Affected products

Vendor Product Category Matched by
Cisco Cisco IOS XR Software Routing & Switching cna-assigner
Vendor-reported affected versions (1)
  • Cisco · Cisco IOS XR Software

References