CVE-2024-20322
MEDIUMCisco IOS XR - Unauthenticated ACL Bypass via Pseudowire Interface
Title source: llmDescription
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.
References (1)
Core 1
Core References
Scores
CVSS v3
5.8
EPSS
0.0005
EPSS Percentile
15.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-284
Status
published
Products (2)
cisco/ios_xr
7.10.2
cisco/ios_xr
7.11
Published
Mar 13, 2024
Tracked Since
Feb 18, 2026