CVE-2026-29516CWE-732

Buffalo TeraStation TS5400R Excessive File Permissions Information Disclosure

Medium · published March 16, 2026

CVSS v4.0
6.9
EPSS
1%
Percentile
50.1
In the wild
Unconfirmed
What it is

Buffalo TeraStation NAS TS5400R firmware version 4.02-0.06 and prior contain an excessive file permissions vulnerability that allows authenticated attackers to read the /etc/shadow file by uploading and executing a PHP file through the webserver. Attackers can exploit world-readable permissions on /etc/shadow to retrieve hashed passwords for all configured accounts including root.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00642 · 50.1th percentile
Weakness
CWE-732 · Incorrect Permission Assignment for Critical Resource
Published
2026-03-16T19:07Z
EPSS history
Timeline
  • 16 MAR 19:07Z
    Buffalo TeraStation TS5400R Excessive File Permissions Information Disclosure
    cvelistv5