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CVE

CVE-2024-20399

Cisco · Nx-os

First Reported
Jun 13, 2026
Latest Reported
Jun 13, 2026
Articles
1
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IOC
0
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CVE Enrichment

CVSS
6.7 MEDIUM
EPSS
4.31%
EPSS Percentile
91.14%
CISA KEV
YES — Known Exploited Vulnerability

Description

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

Technical Details

CVSS Version
3.1
CNA / NVD Source
[email protected]
Published
02-Jul-2024 00:15
Last Modified
17-Jun-2026 14:06
EPSS Date
2026-10-30
CWE
CWE-78

CVSS Vector

CVSS:3.1 AV:L / AC:L / PR:H / UI:N / S:U / C:H / I:H / A:H

CISA KEV Details

Date Added
2024-07-02
Remediation Due
2024-07-23
Known Ransomware Campaign Use
Unknown
Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-cmd-injection-xD9OhyOP; https://nvd.nist.gov/vuln/detail/CVE-2024-20399

Affected Products / Versions

References

Last enrichment sync: 31-Oct-2026 13:43
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

Threat Actors (1)

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MITRE ATT&CK (2)

T1090.0011 related articleT1556.0031 related article

Vendors (2)

Cisco1 related articleF51 related article

Products (6)

Cisco Nexus1 related articleCisco NX-OS1 related articleF5 BIG-IP1 related articleLinux1 related articleOpenSSH1 related articlePAM1 related article

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.