CVE-2019-1728: cisco cisco nx-os software
Vulnerability summary
CVE-2019-1728 is a high (CVSS 7.2) vulnerability in cisco cisco nx-os software. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.7% of scored vulnerabilities.
Timeline
- 15-05-2019PublishedVulnerability first disclosed.
- 20-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the Secure Configuration Validation functionality of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to run arbitrary commands at system boot time with the privileges of root. The vulnerability is due to a lack of proper validation of system files when the persistent configuration information is read from the file system. An attacker could exploit this vulnerability by authenticating to the device and overwriting the persistent configuration storage with malicious executable files. An exploit could allow the attacker to run arbitrary commands at system startup and those commands will run as the root user. The attacker must have valid administrative credentials for the device.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST6.7MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
15%
Versus all other CVEs
30-day change
0.00 pp
From 0.24% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco2 products
- cisco nx-os software≥ unspecified, < 8.3(1)
- nx-os≥ 8.1, < 8.1\(1b\) | ≥ 8.2, < 8.3\(1\) | ≥ 7.0\(3\)i7, < 7.0\(3\)i7\(3\) | ≥ 6.0\(2\)a8, < 6.0\(2\)a8\(11\) | ≥ 7.0\(3\), < 7.0\(3\)i7\(3\) | ≥ 7.3, < 7.3\(4\)n1\(1\) | ≥ 6.2, < 6.2\(22\) | ≥ 7.2, < 7.3\(3\)d1\(1\) | ≥ 8.0, < 8.3\(1\) | ≥ 4.0, < 4.0\(1a\) | ≥ 2.4, < 2.4.1.101
1 vendor · 2 products
References
2 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-conf-bypassVendor AdvisoryX Refsource CISCO