Vulnerability Monitor

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CVE-2019-1726


A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to access internal services that should be restricted on an affected device, such as the NX-API. The vulnerability is due to insufficient validation of arguments passed to a certain CLI command. An attacker could exploit this vulnerability by including malicious input as the argument to the affected command. A successful exploit could allow the attacker to bypass intended restrictions and access internal services of the device. An attacker would need valid device credentials to exploit this vulnerability.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.8, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 29 products from cisco, from cisco, from cisco and 26 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.


Published

2019-05-15T17:29:01.467

Last Modified

2024-11-21T04:37:11.267

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

3.9

Impact Score

6.4

Weaknesses
  • Type: Secondary
    CWE-20
  • Type: Primary
    CWE-78

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco nx-os < 6.2\(25\) Yes
Operating System cisco nx-os < 8.3\(2\) Yes
Hardware cisco mds_9000 - No
Hardware cisco mds_9100 - No
Hardware cisco mds_9200 - No
Hardware cisco mds_9500 - No
Hardware cisco mds_9700 - No
Operating System cisco nx-os < 7.0\(3\)i7\(3\) Yes
Hardware cisco nexus_3000 - No
Hardware cisco nexus_3100 - No
Hardware cisco nexus_3100-z - No
Hardware cisco nexus_3100v - No
Hardware cisco nexus_3200 - No
Hardware cisco nexus_3400 - No
Hardware cisco nexus_3500 - No
Hardware cisco nexus_3600 - No
Hardware cisco nexus_9000 - No
Hardware cisco nexus_9200 - No
Hardware cisco nexus_9300 - No
Hardware cisco nexus_9500 - No
Operating System cisco nx-os < 6.0\(2\)a8\(11\) Yes
Operating System cisco nx-os < 7.0\(3\)i7\(3\) Yes
Hardware cisco nexus_3524-x - No
Hardware cisco nexus_3524-xl - No
Hardware cisco nexus_3548-x - No
Hardware cisco nexus_3548-xl - No
Operating System cisco nx-os < 7.3\(4\)n1\(1\) Yes
Hardware cisco nexus_5500 - No
Hardware cisco nexus_5600 - No
Hardware cisco nexus_6000 - No
Operating System cisco nx-os < 6.2\(22\) Yes
Operating System cisco nx-os < 7.3\(3\)d1\(1\) Yes
Operating System cisco nx-os < 8.3\(2\) Yes
Hardware cisco nexus_7000 - No
Hardware cisco nexus_7700 - No
Operating System cisco nx-os < 4.0\(1d\) Yes
Hardware cisco ucs_6248up - No
Hardware cisco ucs_6296up - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.