CVE-2026-27514: Tenda f3 Firmware

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Shenzhen Tenda F3 Wireless Router firmware V12.01.01.55_multi contains a sensitive information exposure vulnerability in the configuration download functionality. The configuration download response includes the router password and administrative password in plaintext. The endpoint also omits appropriate Cache-Control directives, which can allow the response to be stored in client-side caches and recovered by other local users or processes with access to cached browser data.

Affected products

• Tenda f3 Firmware: up to and including 12.01.01.55_multi

Published 2026-02-23. Last modified 2026-06-17.