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    CVE-2024-20320

    A vulnerability in the SSH client feature of Cisco IOS XR Software for Cisco 8000 Series Routers and Cisco Network Convergence System (NCS) 540 Series and 5700 Series Routers could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient validation of arguments that are included with the SSH client CLI command. An attacker with low-privileged access to an affected device could exploit this vulnerability by issuing a crafted SSH client command to the CLI. A successful exploit could allow the attacker to elevate privileges to root on the affected device.

    Published:Mar 13, 2024
    Last Modified:Aug 5, 2025
    EPS:Mar 13, 2024
    EPSS Score:0.00047
    CVSS Score:7.8

    Affected Products

    Vendor
    Cisco
    Product
    8011-4g24y4h-i
    Vendor
    Cisco
    Product
    8101-32fh
    Vendor
    Cisco
    Product
    8101-32fh-o
    Vendor
    Cisco
    Product
    8101-32h-o
    Vendor
    Cisco
    Product
    8102-28fh-dpu-o
    Vendor
    Cisco
    Product
    8102-64h
    Vendor
    Cisco
    Product
    8102-64h-o
    Vendor
    Cisco
    Product
    8111-32eh-o
    Vendor
    Cisco
    Product
    8122-64eh-o
    Vendor
    Cisco
    Product
    8122-64ehf-o
    Vendor
    Cisco
    Product
    8201
    Vendor
    Cisco
    Product
    8201-24h8fh
    Vendor
    Cisco
    Product
    8201-32fh
    Vendor
    Cisco
    Product
    8201-32fh-o
    Vendor
    Cisco
    Product
    8202
    Vendor
    Cisco
    Product
    8202-32fh-m
    Vendor
    Cisco
    Product
    8212-48fh-m
    Vendor
    Cisco
    Product
    8404
    Vendor
    Cisco
    Product
    8501-sys-mt
    Vendor
    Cisco
    Product
    8608
    Vendor
    Cisco
    Product
    8700
    Vendor
    Cisco
    Product
    8711-32fh-m
    Vendor
    Cisco
    Product
    8712-mod-m
    Vendor
    Cisco
    Product
    8804
    Vendor
    Cisco
    Product
    8808
    Vendor
    Cisco
    Product
    8812
    Vendor
    Cisco
    Product
    8818
    Vendor
    Cisco
    Product
    Ios Xr
    Vendor
    Cisco
    Product
    Ios Xr Software
    Vendor
    Cisco
    Product
    Ios Xrd Control Plane
    Vendor
    Cisco
    Product
    Ios Xrd Vrouter
    Vendor
    Cisco
    Product
    Ncs 540-12z20g-sys-a
    Vendor
    Cisco
    Product
    Ncs 540-12z20g-sys-d
    Vendor
    Cisco
    Product
    Ncs 540-24q2c2dd-sys
    Vendor
    Cisco
    Product
    Ncs 540-24q8l2dd-sys
    Vendor
    Cisco
    Product
    Ncs 540-24z8q2c-sys
    Vendor
    Cisco
    Product
    Ncs 540-28z4c-sys-a
    Vendor
    Cisco
    Product
    Ncs 540-28z4c-sys-d
    Vendor
    Cisco
    Product
    Ncs 540-6z14s-sys-d
    Vendor
    Cisco
    Product
    Ncs 540-6z18g-sys-a
    Vendor
    Cisco
    Product
    Ncs 540-6z18g-sys-d
    Vendor
    Cisco
    Product
    Ncs 540-acc-sys
    Vendor
    Cisco
    Product
    Ncs 540-fh-agg
    Vendor
    Cisco
    Product
    Ncs 540-fh-csr-sys
    Vendor
    Cisco
    Product
    Ncs 540x-12z16g-sys-a
    Vendor
    Cisco
    Product
    Ncs 540x-12z16g-sys-d
    Vendor
    Cisco
    Product
    Ncs 540x-16z4g8q2c-a
    Vendor
    Cisco
    Product
    Ncs 540x-16z4g8q2c-d
    Vendor
    Cisco
    Product
    Ncs 540x-16z8q2c-d
    Vendor
    Cisco
    Product
    Ncs 540x-4z14g2q-a
    Vendor
    Cisco
    Product
    Ncs 540x-4z14g2q-d
    Vendor
    Cisco
    Product
    Ncs 540x-6z18g-sys-a
    Vendor
    Cisco
    Product
    Ncs 540x-6z18g-sys-d
    Vendor
    Cisco
    Product
    Ncs 540x-8z16g-sys-a
    Vendor
    Cisco
    Product
    Ncs 540x-8z16g-sys-d
    Vendor
    Cisco
    Product
    Ncs 540x-acc-sys
    Vendor
    Cisco
    Product
    Ncs 57b1-5dse-sys
    Vendor
    Cisco
    Product
    Ncs 57b1-6d24-sys
    Vendor
    Cisco
    Product
    Ncs 57c1-48q6-sys

    Exploits

    No exploit reference

    Common Weakness Enumeration

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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