CVE-2024-20320

HIGH

7.8

CVSS Score

Published: March 13, 2024 at 04:41 PM UTC

Updated: June 17, 2026 at 07:06 AM UTC

58 products affected across 1 vendorIOS Xr82018202

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Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

IOS Xr · Cisco

95%

7.10.1 7.2.1 7.2.2 7.3.1 7.3.15 7.3.2 7.3.3 7.3.5 7.4.1 7.4.2 7.5.1 7.5.2 7.5.3 7.5.4 7.5.5 7.6.1 7.6.2 7.7.1 7.7.2 7.7.21 7.8.1 7.8.2 7.9.1 7.9.2 7.9.21

cisco-8011-4g24y4h-i (environment) · cisco-8101-32fh (environment) · cisco-8101-32fh-o (environment) · cisco-8101-32h-o (environment) · cisco-8102-28fh-dpu-o (environment) · cisco-8102-64h (environment) · cisco-8102-64h-o (environment) · cisco-8111-32eh-o (environment) · cisco-8122-64eh-o (environment) · cisco-8122-64ehf-o (environment) · cisco-8201 (environment) · cisco-8201-24h8fh (environment) · cisco-8201-32fh (environment) · cisco-8201-32fh-o (environment) · cisco-8202 (environment) · cisco-8202-32fh-m (environment) · cisco-8212-48fh-m (environment) · cisco-8404 (environment) · cisco-8501-sys-mt (environment) · cisco-8608 (environment) · cisco-8700 (environment) · cisco-8711-32fh-m (environment) · cisco-8712-mod-m (environment) · cisco-8804 (environment) · cisco-8808 (environment) · cisco-8812 (environment) · cisco-8818 (environment) · cisco-ncs-540-12z20g-sys-a (environment) · cisco-ncs-540-12z20g-sys-d (environment) · cisco-ncs-540-24q2c2dd-sys (environment) · cisco-ncs-540-24q8l2dd-sys (environment) · cisco-ncs-540-24z8q2c-sys (environment) · cisco-ncs-540-28z4c-sys-a (environment) · cisco-ncs-540-28z4c-sys-d (environment) · cisco-ncs-540-6z14s-sys-d (environment) · cisco-ncs-540-6z18g-sys-a (environment) · cisco-ncs-540-6z18g-sys-d (environment) · cisco-ncs-540-acc-sys (environment) · cisco-ncs-540-fh-agg (environment) · cisco-ncs-540-fh-csr-sys (environment) · cisco-ncs-540x-12z16g-sys-a (environment) · cisco-ncs-540x-12z16g-sys-d (environment) · cisco-ncs-540x-16z4g8q2c-a (environment) · cisco-ncs-540x-16z4g8q2c-d (environment) · cisco-ncs-540x-16z8q2c-d (environment) · cisco-ncs-540x-4z14g2q-a (environment) · cisco-ncs-540x-4z14g2q-d (environment) · cisco-ncs-540x-6z18g-sys-a (environment) · cisco-ncs-540x-6z18g-sys-d (environment) · cisco-ncs-540x-8z16g-sys-a (environment) · cisco-ncs-540x-8z16g-sys-d (environment) · cisco-ncs-540x-acc-sys (environment) · cisco-ncs-57b1-5dse-sys (environment) · cisco-ncs-57b1-6d24-sys (environment) · cisco-ncs-57c1-48q6-sys (environment) · cisco-ios-xrd-control-plane (same device) · cisco-ios-xrd-vrouter (same device)

8011-4G24Y4H-I · Ciscodevice

80%

All versions

8101-32Fh · Ciscodevice

80%

All versions

8101-32Fh-O · Ciscodevice

80%

All versions

8101-32H-O · Ciscodevice

80%

All versions