Improper limitation of a pathname to a restricted directory ('Path Traversal') issue exists in the file download 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 by a crafted HTTP request to specific functions of the product from a device connected to the LAN side.
CVE ID: CVE-2025-27726
CVSS Base Severity: LOW
CVSS Base Score: 2.1
CVSS Vector: CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Vendor: KDDI CORPORATION
Product: HGW-BL1500HM
EPSS Score: 0.08% (probability of being exploited)
EPSS Percentile: 24.49% (scored less or equal to compared to others)
EPSS Date: 2025-04-18 (when was this score calculated)