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CVE-2019-1726

HIGHCVSS 7.8/10EPSS 0.42%

Last modified

CVE-2019-1726 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
0.42%

33.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoNx-Os>= 5.2, < 6.2\(25\)
CiscoNx-Os>= 7.3, < 8.3\(2\)
CiscoNx-Os>= 7.0\(3\)i7, < 7.0\(3\)i7\(3\)
CiscoNx-Os< 6.0\(2\)a8\(11\)
CiscoNx-Os>= 7.0\(3\), < 7.0\(3\)i7\(3\)
CiscoNx-Os< 7.3\(4\)n1\(1\)
CiscoNx-Os< 6.2\(22\)
CiscoNx-Os>= 7.2, < 7.3\(3\)d1\(1\)
CiscoNx-Os>= 8.0, < 8.3\(2\)
CiscoNx-Os< 4.0\(1d\)

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2019-1726?
CVE-2019-1726 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.
How do I fix CVE-2019-1726?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-1726?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST