CVE-2019-1729

6.0 MEDIUM 0.2% exploit odds Fix listed

What it is

A vulnerability in the CLI implementation of a specific command used for image maintenance for Cisco NX-OS Software could allow an authenticated, local attacker to overwrite any file on the file system including system files. These file overwrites by the attacker are accomplished at the root privilege level. The vulnerability occurs because there is no verification of user-input parameters and or digital-signature verification for image files when using a specific CLI command. An attacker could exploit this vulnerability by authenticating to the device and issuing a command at the CLI. Because an exploit could allow the attacker to overwrite any file on the disk, including system files, a denial of service (DoS) condition could occur. The attacker must have valid administrator credentials for the affected device to exploit this vulnerability.

At a glance

Exploitability: Can be exploited locally on the machine with an admin-level account. High risk of data tampering, service disruption.
Exploit odds: 0.2% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2019-05-15 17:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:29 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.2% in the next 30 days (EPSS).
Severity: 6.0 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2019-05-15 17:29 UTC
Last modified: 2026-06-17 02:29 UTC
Exploit probability: 0.2% · EPSS, next 30 days
Weakness: CWE-20 · Improper input validation
Record status: Modified

Affected

Cisco nx-os < 7.0\(3\)i4\(9\)
Cisco nx-os < 7.0\(3\)i7\(4\)
Cisco nx-os < 7.0\(3\)f3\(5\)

Attack profile CVSS 3.1 · 6.0

Attack vector: Local
Complexity: Low
Privileges needed: High
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: High

Raw vector

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

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2019-1729.md and follow it. Check whether this project is affected by CVE-2019-1729. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record