CVE-2026-29516

MEDIUM

Buffalo TeraStation TS5400R Excessive File Permissions Information Disclosure

Title source: cna

Description

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.

References (2)

[Product] https://buffaloamericas.com/

[Third Party Advisory] https://www.vulncheck.com/advisories/buffalo-terastation-ts5400r-excessive-file-permissions-information-disclosure

Scores

CVSS v3 4.9

EPSS 0.0001

EPSS Percentile 0.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Details

CWE

CWE-732

Status published

Products (1)

Buffalo/TeraStation NAS TS5400R < 4.02-0.06

Published Mar 16, 2026

Tracked Since Mar 17, 2026