CVE-2024-20322
A vulnerability in the access control list (ACL) processing on Pseudowire interfaces in the ingress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to improper assignment of lookup keys to internal interface contexts. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to access resources behind the affected device that were supposed to be protected by a configured ACL.
Published:Mar 13, 2024
Last Modified:Aug 5, 2025
EPS:Mar 13, 2024
EPSS Score:0.0008
CVSS Score:5.8
Affected Products
Vendor
Product
Action
Vendor
Cisco
Product
8011-4g24y4h-i
Cisco
8011-4g24y4h-i
Vendor
Cisco
Product
8101-32fh
Cisco
8101-32fh
Vendor
Cisco
Product
8101-32fh-o
Cisco
8101-32fh-o
Vendor
Cisco
Product
8101-32h-o
Cisco
8101-32h-o
Vendor
Cisco
Product
8102-28fh-dpu-o
Cisco
8102-28fh-dpu-o
Vendor
Cisco
Product
8102-64h
Cisco
8102-64h
Vendor
Cisco
Product
8102-64h-o
Cisco
8102-64h-o
Vendor
Cisco
Product
8111-32eh-o
Cisco
8111-32eh-o
Vendor
Cisco
Product
8122-64eh-o
Cisco
8122-64eh-o
Vendor
Cisco
Product
8122-64ehf-o
Cisco
8122-64ehf-o
Vendor
Cisco
Product
8201
Cisco
8201
Vendor
Cisco
Product
8201-24h8fh
Cisco
8201-24h8fh
Vendor
Cisco
Product
8201-32fh
Cisco
8201-32fh
Vendor
Cisco
Product
8201-32fh-o
Cisco
8201-32fh-o
Vendor
Cisco
Product
8202
Cisco
8202
Vendor
Cisco
Product
8202-32fh-m
Cisco
8202-32fh-m
Vendor
Cisco
Product
8212-48fh-m
Cisco
8212-48fh-m
Vendor
Cisco
Product
8404
Cisco
8404
Vendor
Cisco
Product
8501-sys-mt
Cisco
8501-sys-mt
Vendor
Cisco
Product
8608
Cisco
8608
Vendor
Cisco
Product
8700
Cisco
8700
Vendor
Cisco
Product
8711-32fh-m
Cisco
8711-32fh-m
Vendor
Cisco
Product
8712-mod-m
Cisco
8712-mod-m
Vendor
Cisco
Product
8804
Cisco
8804
Vendor
Cisco
Product
8808
Cisco
8808
Vendor
Cisco
Product
8812
Cisco
8812
Vendor
Cisco
Product
8818
Cisco
8818
Vendor
Cisco
Product
Ios Xr
Cisco
Ios Xr
Vendor
Cisco
Product
Ios Xr Software
Cisco
Ios Xr Software
Vendor
Cisco
Product
Ncs 540-12z20g-sys-a
Cisco
Ncs 540-12z20g-sys-a
Vendor
Cisco
Product
Ncs 540-12z20g-sys-d
Cisco
Ncs 540-12z20g-sys-d
Vendor
Cisco
Product
Ncs 540-24q2c2dd-sys
Cisco
Ncs 540-24q2c2dd-sys
Vendor
Cisco
Product
Ncs 540-24q8l2dd-sys
Cisco
Ncs 540-24q8l2dd-sys
Vendor
Cisco
Product
Ncs 540-24z8q2c-sys
Cisco
Ncs 540-24z8q2c-sys
Vendor
Cisco
Product
Ncs 540-28z4c-sys-a
Cisco
Ncs 540-28z4c-sys-a
Vendor
Cisco
Product
Ncs 540-28z4c-sys-d
Cisco
Ncs 540-28z4c-sys-d
Vendor
Cisco
Product
Ncs 540-6z14s-sys-d
Cisco
Ncs 540-6z14s-sys-d
Vendor
Cisco
Product
Ncs 540-6z18g-sys-a
Cisco
Ncs 540-6z18g-sys-a
Vendor
Cisco
Product
Ncs 540-6z18g-sys-d
Cisco
Ncs 540-6z18g-sys-d
Vendor
Cisco
Product
Ncs 540-acc-sys
Cisco
Ncs 540-acc-sys
Vendor
Cisco
Product
Ncs 540-fh-agg
Cisco
Ncs 540-fh-agg
Vendor
Cisco
Product
Ncs 540-fh-csr-sys
Cisco
Ncs 540-fh-csr-sys
Vendor
Cisco
Product
Ncs 540x-12z16g-sys-a
Cisco
Ncs 540x-12z16g-sys-a
Vendor
Cisco
Product
Ncs 540x-12z16g-sys-d
Cisco
Ncs 540x-12z16g-sys-d
Vendor
Cisco
Product
Ncs 540x-16z4g8q2c-a
Cisco
Ncs 540x-16z4g8q2c-a
Vendor
Cisco
Product
Ncs 540x-16z4g8q2c-d
Cisco
Ncs 540x-16z4g8q2c-d
Vendor
Cisco
Product
Ncs 540x-16z8q2c-d
Cisco
Ncs 540x-16z8q2c-d
Vendor
Cisco
Product
Ncs 540x-4z14g2q-a
Cisco
Ncs 540x-4z14g2q-a
Vendor
Cisco
Product
Ncs 540x-4z14g2q-d
Cisco
Ncs 540x-4z14g2q-d
Vendor
Cisco
Product
Ncs 540x-6z18g-sys-a
Cisco
Ncs 540x-6z18g-sys-a
Vendor
Cisco
Product
Ncs 540x-6z18g-sys-d
Cisco
Ncs 540x-6z18g-sys-d
Vendor
Cisco
Product
Ncs 540x-8z16g-sys-a
Cisco
Ncs 540x-8z16g-sys-a
Vendor
Cisco
Product
Ncs 540x-8z16g-sys-d
Cisco
Ncs 540x-8z16g-sys-d
Vendor
Cisco
Product
Ncs 540x-acc-sys
Cisco
Ncs 540x-acc-sys
Vendor
Cisco
Product
Ncs 5501
Cisco
Ncs 5501
Vendor
Cisco
Product
Ncs 5501-se
Cisco
Ncs 5501-se
Vendor
Cisco
Product
Ncs 5502
Cisco
Ncs 5502
Vendor
Cisco
Product
Ncs 5502-se
Cisco
Ncs 5502-se
Vendor
Cisco
Product
Ncs 5504
Cisco
Ncs 5504
Vendor
Cisco
Product
Ncs 5508
Cisco
Ncs 5508
Vendor
Cisco
Product
Ncs 5516
Cisco
Ncs 5516
Vendor
Cisco
Product
Ncs 55a1-24h
Cisco
Ncs 55a1-24h
Vendor
Cisco
Product
Ncs 55a1-24q6h-s
Cisco
Ncs 55a1-24q6h-s
Vendor
Cisco
Product
Ncs 55a1-24q6h-ss
Cisco
Ncs 55a1-24q6h-ss
Vendor
Cisco
Product
Ncs 55a1-36h
Cisco
Ncs 55a1-36h
Vendor
Cisco
Product
Ncs 55a1-36h-se
Cisco
Ncs 55a1-36h-se
Vendor
Cisco
Product
Ncs 55a1-48q6h
Cisco
Ncs 55a1-48q6h
Vendor
Cisco
Product
Ncs 55a2-mod-hd-s
Cisco
Ncs 55a2-mod-hd-s
Vendor
Cisco
Product
Ncs 55a2-mod-s
Cisco
Ncs 55a2-mod-s
Vendor
Cisco
Product
Ncs 55a2-mod-se-s
Cisco
Ncs 55a2-mod-se-s
Vendor
Cisco
Product
Ncs 560-4
Cisco
Ncs 560-4
Vendor
Cisco
Product
Ncs 560-7
Cisco
Ncs 560-7
Vendor
Cisco
Product
Ncs 57b1-5dse-sys
Cisco
Ncs 57b1-5dse-sys
Vendor
Cisco
Product
Ncs 57b1-6d24-sys
Cisco
Ncs 57b1-6d24-sys
Vendor
Cisco
Product
Ncs 57c1-48q6-sys
Cisco
Ncs 57c1-48q6-sys
Vendor
Cisco
Product
Ncs 57c3-mod-sys
Cisco
Ncs 57c3-mod-sys
Vendor
Cisco
Product
Ncs 57d2-18dd-sys
Cisco
Ncs 57d2-18dd-sys
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
