Medium severity4.4NVD Advisory· Published Mar 24, 2021· Updated Jun 17, 2026
CVE-2021-1423
CVE-2021-1423
Description
A vulnerability in the implementation of a CLI command in Cisco Aironet Access Points (AP) could allow an authenticated, local attacker to overwrite files in the flash memory of the device. This vulnerability is due to insufficient input validation for a specific command. An attacker could exploit this vulnerability by issuing a command with crafted arguments. A successful exploit could allow the attacker to overwrite or create files with data that is already present in other files that are hosted on the affected device.
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Affected products
5cpe:2.3:a:cisco:aironet_access_point_software:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:cisco:aironet_access_point_software:-:*:*:*:*:*:*:*
- (no CPE)range: n/a
- cpe:2.3:a:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:*Range: <8.5.171.0
- cpe:2.3:o:cisco:catalyst_9800_firmware:*:*:*:*:*:*:*:*Range: <16.12.5
Patches
Vulnerability mechanics
References
1News mentions
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