Path Traversal in Kddi Corporation Hgw-Bl1500hm

CVE-2025-27726

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.

Vulnerability class: Path Traversal (Directory Traversal)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 2.1 (Low). Vector: CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-27726: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-27726?
CVE-2025-27726 is a low-severity vulnerability in Kddi Corporation Hgw-Bl1500hm, classified under Path Traversal. CVSS score: 2.1/10. Published 2025-03-28.
How severe is CVE-2025-27726?
Low severity. CVSS v3 base score is 2.1 out of 10.
Is CVE-2025-27726 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.