A vulnerability in the CLI of Cisco NX-OS System Software could allow an authenticated, local attacker to perform a command injection attack. An attacker would need valid administrator credentials to perform this exploit. The vulnerability is due to insufficient input validation during the installation of a software patch. An attacker could exploit this vulnerability by installing a crafted patch image with the vulnerable operation occurring prior to patch activation. An exploit could allow the attacker to execute arbitrary commands on an affected system as root. This vulnerability affects the following products running Cisco NX-OS System Software: Multilayer Director Switches, Nexus 2000 Series Fabric Extenders, Nexus 5000 Series Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Unified Computing System Manager. Cisco Bug IDs: CSCvf23735, CSCvg04072.
Conclusion & alert: CVE-2017-12341 is rated Moderate Risk (48.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.42%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-01-12 | 0.26% | 0.42% | +0.16% |
| 2 | 2025-03-17 | 0.04% | 0.26% | +0.22% |
| 3 | 2023-03-07 | — | 0.04% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.7 | 3.0 | MEDIUM |
|
0.8 | 5.9 | [email protected] |
| 7.2 | 2.0 | HIGH |
|
3.9 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | unified_computing_system | 7.0\(0\)hsk\(0.357\) | cpe:2.3:a:cisco:unified_computing_system:7.0\(0\)hsk\(0.357\):*:*:*:*:*:*:* |
| cisco | nx-os | 8.1\(0.59\)s0 | cpe:2.3:o:cisco:nx-os:8.1\(0.59\)s0:*:*:*:*:*:*:* |
| cisco | nx-os | 8.1\(1\) | cpe:2.3:o:cisco:nx-os:8.1\(1\):*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.securitytracker.com/id/1039939 | Third Party Advisory VDB Entry |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos8 | Vendor Advisory |