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Vulnerability record · CVE-2021-1419 · published 23 September 2021

CVE-2021-1419: Cisco aironet 1542d firmware improper access control vulnerability

Cisco · Aironet 1542d Firmware

A vulnerability in the SSH management feature of multiple Cisco Access Points (APs) platforms could allow a local, authenticated user to modify files on the affected device and possibly gain escalated privileges. The vulnerability is due to improper checking on file operations within the SSH management interface. A network administrator user could exploit this vulnerability by accessing an affected device through SSH management to make a configuration change. A successful exploit could allow the attacker to gain privileges equivalent to the root user.

7.8 CVSS 3.1 High EPSS 0.22% · top 89.0% CWE-284 · Improper access control
7.8CVSS 3.1 base score, v2 7.2
0.22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
41Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability in the SSH management feature of multiple Cisco Access Points (APs) platforms could allow a local, authenticated user to modify files on the affected device and possibly gain escalated privileges. The vulnerability is due to improper checking on file operations within the SSH management interface. A network administrator user could exploit this vulnerability by accessing an affected device through SSH management to make a configuration change. A successful exploit could allow the attacker to gain privileges equivalent to the root user.

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

Affected products

41 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-ap-LLjsGxv PatchVendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-ap-LLjsGxv PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-1419), CISA KEV, FIRST EPSS (scores of 2026-10-03). This page is refreshed as NVD updates the record.