high7.5
CVE-2021-1437
A vulnerability in the FlexConnect Upgrade feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, remote attacker to obtain con…
Impact
A vulnerability in the FlexConnect Upgrade feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, remote attacker to obtain confidential information from an affected device. This vulnerability is due to an unrestricted Trivial File Transfer Protocol (TFTP) configuration. An attacker could exploit this vulnerability by sending a specific TFTP request to an affected device. A successful exploit could allow the attacker to download any file from the filesystem of the affected access point (AP).
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Aironet Access Point Software | All versions |
| Cisco | Catalyst 9800 Firmware | from 17.1 before 17.3.3 |
| Cisco | Wireless Lan Controller Software | from 8.10.112.0 before 8.10.142.0 |