CVE-2025-27718: Kddi Corporation Hgw-BL1500HM

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

Improper limitation of a pathname to a restricted directory ('Path Traversal') issue exists in the file upload process of the USB storage file-sharing function of HGW-BL1500HM Ver 002.002.003 and earlier. If this vulnerability is exploited, the product's files may be obtained and/or altered or arbitrary code may be executed by a crafted HTTP request to specific functions of the product from a device connected to the LAN side.

Affected products

• Kddi Corporation Hgw-BL1500HM: up to and including 002.002.003

Published 2025-03-28. Last modified 2026-06-17.