🔐 CVE Alert

CVE-2024-20399

MEDIUM 6.0 ⚠️ CISA KEV

Cisco NX-OS Software CLI Command Injection Vulnerability

CVSS Score
6.0
EPSS Score
0.0%
EPSS Percentile
0th

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

CWE CWE-78
Vendor cisco
Product cisco nx-os software
Ecosystems
Industries
NetworkingTelecommunications
Published Jul 1, 2024
Last Updated Oct 21, 2025
⚠️ Actively Exploited — Act Now

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Affected Versions

Cisco / Cisco NX-OS Software
8.2(5) 7.3(6)N1(1a) 7.3(5)D1(1) 8.4(2) 7.3(6)N1(1) 6.2(2) 8.4(3) 9.2(3) 7.0(3)I5(2) 8.2(1) 6.0(2)A8(7a) 7.0(3)I4(5) 6.0(2)A6(1) 7.3(1)D1(1) 6.2(14a) 7.0(3)I4(6) 7.3(4)N1(1) 7.0(3)I4(3) 9.2(2v) 6.0(2)A6(5b) 7.3(0)D1(1) 6.2(17a) 7.0(3)I4(7) 6.0(2)U6(1a) 7.1(5)N1(1b) 7.0(3)I4(1) 7.0(3)I4(8) 7.0(3)I4(2) 7.1(4)N1(1c) 7.0(3)IM3(1) 6.0(2)U6(5a) 6.0(2)A8(11) 6.0(2)A6(4a) 6.2(9) 6.2(5) 7.3(4)D1(1) 6.2(20) 9.2(1) 9.2(2t) 9.2(3y) 7.0(3)I4(1t) 6.0(2)U6(5c) 6.0(2)A6(4) 7.0(3)I7(6z) 9.3(2) 7.3(1)DY(1) 7.0(3)F3(3) 6.0(2)U6(6) 6.2(29) 7.0(3)I7(3z) 7.0(3)IM7(2) 6.0(2)A8(11b) 6.2(9a) 7.3(0)N1(1) 7.0(3)I7(5a) 6.2(11d) 8.1(1) 7.0(3)I6(1) 6.0(2)U6(10) 7.2(2)D1(2) 7.0(3)IM3(2) 6.0(2)A6(8) 8.2(2) 6.0(2)U6(1) 7.3(2)N1(1c) 7.0(3)I5(3b) 8.3(2) 7.3(5)N1(1) 6.0(2)A6(2a) 7.3(2)N1(1b) 6.2(27) 7.3(2)D1(3a) 7.3(1)N1(1) 6.0(2)U6(7) 9.2(4) 7.1(4)N1(1a) 7.1(3)N1(4) 7.0(3)IM3(2a) 6.2(8b) 6.0(2)A8(10) 7.1(3)N1(2) 6.2(13) 6.0(2)A8(2) 7.0(3)IC4(4) 6.2(1) 7.3(4)N1(1a) 8.1(2) 6.0(2)A6(3) 6.0(2)U6(5b) 7.0(3)F3(3c) 7.3(3)D1(1) 7.0(3)F3(1) 6.0(2)U6(5) 7.0(3)F3(5) 7.1(2)N1(1) 7.1(3)N1(3) 8.2(3) 6.0(2)A6(7) 7.0(3)I7(2) 6.2(5a) 6.2(18) 6.0(2)A6(5) 7.0(3)IM3(2b) 7.1(3)N1(1) 6.0(2)U6(4a) 7.0(3)I5(3) 7.0(3)I7(3) 6.0(2)A8(6) 7.0(3)I6(2) 8.3(1) 6.2(3) 6.2(22) 7.1(1)N1(1) 8.4(1) 8.1(1b) 7.3(0)N1(1b) 7.2(2)D1(4) 6.0(2)A8(5) 7.3(0)DX(1) 7.1(4)N1(1d) 7.3(2)D1(1) 7.3(2)N1(1) 6.0(2)U6(8) 7.1(1)N1(1a) 7.0(3)IM3(3) 9.3(1) 6.0(2)U6(2) 6.2(9b) 7.1(3)N1(2a) 7.3(0)N1(1a) 6.0(2)A8(7) 7.0(3)I7(6) 7.3(2)D1(2) 6.2(25) 6.0(2)U6(3a) 8.0(1) 6.0(2)A8(11a) 6.2(11e) 7.1(3)N1(5) 7.0(3)I4(8z) 6.2(11) 7.0(3)I4(9) 6.2(16) 6.2(19) 8.2(4) 6.2(2a) 7.2(2)D1(3) 7.1(0)N1(1b) 7.0(3)I7(4) 7.0(3)I7(7) 6.2(5b) 7.3(0)DY(1) 6.0(2)A8(9) 6.0(2)A8(1) 7.1(5)N1(1) 7.2(1)D1(1) 6.2(15) 6.0(2)A6(6) 6.0(2)A8(10a) 7.0(3)I5(1) 9.3(1z) 9.2(2) 6.2(7) 6.2(9c) 7.0(3)F3(4) 7.3(3)N1(1) 6.2(6b) 7.0(3)I4(8b) 8.1(2a) 7.3(2)D1(3) 6.2(8) 6.0(2)A8(3) 6.2(11b) 7.0(3)I4(6t) 7.0(3)I5(3a) 8.1(1a) 6.2(13a) 6.0(2)A8(8) 7.0(3)I7(5) 7.0(3)F3(3a) 7.1(0)N1(1a) 6.0(2)A8(4) 6.0(2)A6(3a) 6.0(2)A6(5a) 7.0(3)F2(1) 7.0(3)I4(8a) 6.0(2)U6(9) 7.0(3)F3(2) 6.0(2)U6(2a) 6.2(12) 6.2(17) 7.0(3)I4(4) 6.2(23) 6.2(13b) 6.0(2)U6(3) 6.2(10) 6.2(6a) 6.2(6) 7.1(2)N1(1a) 6.2(14) 7.0(3)I7(1) 6.2(14b) 6.2(21) 7.2(2)D1(1) 7.0(3)F2(2) 7.0(3)IA7(2) 7.0(3)IA7(1) 6.0(2)A8(7b) 6.2(8a) 6.2(11c) 7.0(3)F1(1) 6.0(2)A6(1a) 7.1(0)N1(1) 7.2(0)D1(1) 6.0(2)A6(2) 7.1(4)N1(1) 6.0(2)A8(4a) 6.2(20a) 6.0(2)U6(4) 8.4(1a) 9.3(3) 7.3(2)D1(1d) 7.3(7)N1(1) 6.2(24) 6.2(31) 7.0(3)I7(8) 6.0(2)U6(10a) 7.3(7)N1(1a) 9.3(4) 7.3(6)D1(1) 6.2(26) 8.2(6) 6.2(33) 9.3(5) 8.4(2a) 8.4(2b) 7.3(8)N1(1) 7.0(3)I7(9) 7.3(7)N1(1b) 6.2(24a) 8.5(1) 9.3(6) 10.1(2) 10.1(1) 8.4(4) 7.3(7)D1(1) 8.4(2c) 9.3(5w) 8.2(7) 7.3(9)N1(1) 9.3(7) 9.3(7k) 7.0(3)I7(9w) 10.2(1) 7.3(8)N1(1a) 7.3(8)D1(1) 9.3(7a) 8.2(7a) 9.3(8) 8.4(4a) 8.4(2d) 7.3(10)N1(1) 8.4(5) 7.0(3)I7(10) 7.3(8)N1(1b) 8.2(8) 10.2(1q) 10.2(2) 9.3(9) 7.3(9)D1(1) 7.3(11)N1(1) 10.2(3) 8.4(6) 8.4(2e) 9.3(10) 7.3(11)N1(1a) 10.2(2a) 7.3(12)N1(1) 9.2(1a) 8.2(9) 10.3(1) 10.2(4) 7.3(13)N1(1) 8.4(7) 10.3(2) 8.4(6a) 9.3(11) 10.3(3) 10.2(5) 9.4(1) 9.3(2a) 8.4(2f) 8.2(10) 9.3(12) 10.4(1) 8.4(8) 10.3(99w) 7.3(14)N1(1) 10.2(6) 10.3(3w) 10.3(99x) 10.3(3o) 8.4(9) 10.3(4) 10.3(3p) 10.3(4a) 9.4(1a) 10.4(2) 10.3(3q) 9.3(13) 8.2(11) 9.4(2) 10.3(5) 10.2(7) 10.3(3x) 10.3(4g) 10.2(8) 10.3(3r)

References

NVD ↗ CVE.org ↗ EPSS Data ↗
sec.cloudapps.cisco.com: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-cmd-injection-xD9OhyOP cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-20399 sygnia.co: https://www.sygnia.co/threat-reports-and-advisories/china-nexus-threat-group-velvet-ant-exploits-cisco-0-day/