High severity7.5NVD Advisory· Published Mar 24, 2021· Updated Jun 17, 2026
CVE-2021-1437
CVE-2021-1437
Description
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).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5(expand)+ 2 more
- (no CPE)
- cpe:2.3:a:cisco:aironet_access_point_software:-:*:*:*:*:*:*:*
- (no CPE)range: n/a
- cpe:2.3:o:cisco:catalyst_9800_firmware:*:*:*:*:*:*:*:*Range: >=17.1,<17.3.3
- cpe:2.3:a:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:*Range: >=8.10.112.0,<8.10.142.0
Patches
Vulnerability mechanics
References
1News mentions
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