CVE-2021-27328: Yeastar Neogate TG400 Firmware

Medium severity, CVSS 6.5. EPSS: 6.4% chance of exploitation in the next 30 days.

Yeastar NeoGate TG400 91.3.0.3 devices are affected by Directory Traversal. An authenticated user can decrypt firmware and can read sensitive information, such as a password or decryption key.

Affected products

• Yeastar Neogate TG400 Firmware: version 91.3.0.3 only

Published 2021-02-19. Last modified 2026-07-09.