Live › vulnerability › CVE-2024-20399
Go to dashboardCisco NX-OS, the network operating system on Cisco Nexus switches, has a command injection flaw in its command line interface. An attacker with valid local credentials can run arbitrary commands as root on the underlying device.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Cisco NX-OS | vendor | – | – |
| cisco nx-os | vendor | = 6.2\(2\) | – |
| cisco nx-os | vendor | = 6.2\(2a\) | – |
| cisco nx-os | vendor | = 6.2\(6\) | – |
| cisco nx-os | vendor | = 6.2\(6a\) | – |
| cisco nx-os | vendor | = 6.2\(6b\) | – |
| cisco nx-os | vendor | = 6.2\(8\) | – |
| cisco nx-os | vendor | = 6.2\(8a\) | – |
| cisco nx-os | vendor | = 6.2\(8b\) | – |
| cisco nx-os | vendor | = 6.2\(10\) | – |
| cisco nx-os | vendor | = 6.2\(12\) | – |
| cisco nx-os | vendor | = 6.2\(14\) | – |
| cisco nx-os | vendor | = 6.2\(16\) | – |
| cisco nx-os | vendor | = 6.2\(18\) | – |
| cisco nx-os | vendor | = 6.2\(20\) | – |
| cisco nx-os | vendor | = 6.2\(20a\) | – |
| cisco nx-os | vendor | = 6.2\(22\) | – |
| cisco nx-os | vendor | = 6.2\(24\) | – |
| cisco nx-os | vendor | = 6.2\(24a\) | – |
| cisco nx-os | vendor | = 7.2\(0\)d1\(1\) | – |
| cisco nx-os | vendor | = 7.2\(1\)d1\(1\) | – |
| cisco nx-os | vendor | = 7.2\(2\)d1\(1\) | – |
| cisco nx-os | vendor | = 7.2\(2\)d1\(2\) | – |
| cisco nx-os | vendor | = 7.3\(0\)d1\(1\) | – |
| cisco nx-os | vendor | = 7.3\(0\)dx\(1\) | – |
| cisco nx-os | vendor | = 7.3\(1\)d1\(1\) | – |
| cisco nx-os | vendor | = 7.3\(2\)d1\(1\) | – |
| cisco nx-os | vendor | = 7.3\(2\)d1\(2\) | – |
| cisco nx-os | vendor | = 7.3\(2\)d1\(3\) | – |
| cisco nx-os | vendor | = 7.3\(2\)d1\(3a\) | – |
| cisco nx-os | vendor | = 7.3\(3\)d1\(1\) | – |
| cisco nx-os | vendor | = 7.3\(4\)d1\(1\) | – |
| cisco nx-os | vendor | = 7.3\(5\)d1\(1\) | – |
| cisco nx-os | vendor | = 7.3\(6\)d1\(1\) | – |
| cisco nx-os | vendor | = 7.3\(7\)d1\(1\) | – |
| cisco nx-os | vendor | = 7.3\(8\)d1\(1\) | – |
| cisco nx-os | vendor | = 7.3\(9\)d1\(1\) | – |
| cisco nx-os | vendor | = 8.0\(1\) | – |
| cisco nx-os | vendor | = 8.1\(1\) | – |
| cisco nx-os | vendor | = 8.1\(2\) | – |
| cisco nx-os | vendor | = 8.1\(2a\) | – |
Unknown from the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated user in possession of Administrator credentials to execute arbitrary commands as root on the underlying operating system of an affected device.
This vulnerability is due to insufficient validation of arguments that are passed to specific configuration CLI commands. An attacker could exploit this vulnerability by including crafted input as the argument of an affected configuration CLI command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with the privileges of root. Note: To successfully exploit this vulnerability on a Cisco NX-OS device, an attacker must have Administrator credentials. The following Cisco devices already allow administrative users to access the underlying operating system through the bash-shell feature, so, for these devices, this vulnerability does not grant any additional privileges:
Nexus 3000 Series Switches Nexus 7000 Series Switches that are running Cisco NX-OS Software releases 8.1(1) and later Nexus 9000 Series Switches in standalone NX-OS mode
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