CVE-2020-3364

MEDIUM

Cisco IOS XR - Unauthenticated Access Control Bypass via Standby Route Processor Management Interface

Title source: llm
STIX 2.1

Description

A vulnerability in the access control list (ACL) functionality of the standby route processor management interface of Cisco IOS XR Software could allow an unauthenticated, remote attacker to reach the configured IP addresses on the standby route processor management Gigabit Ethernet Management interface. The vulnerability is due to a logic error that was introduced in the Cisco IOS XR Software, which prevents the ACL from working when applied against the standby route processor management interface. An attacker could exploit this vulnerability by attempting to access the device through the standby route processor management interface.

References (1)

Core 1
Core References
Mitigation, Vendor Advisory vendor-advisory x_refsource_cisco
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xracl-zbWSWREt

Scores

CVSS v3 5.3
EPSS 0.0053
EPSS Percentile 67.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-284 CWE-863
Status published
Products (6)
cisco/ios_xr 6.7.1
cisco/ios_xr 7.0.2
cisco/ios_xr 7.0.11
cisco/ios_xr 7.0.12
cisco/ios_xr 7.1.1
cisco/ios_xr 7.1.15
Published Jun 18, 2020
Tracked Since Feb 18, 2026