CVE-2026-29516
Medium
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.
SeverityMedium
CVSS4.9
Exploit probability—
ProductBuffaloamericas Terastation Nas Ts5400r Firmware
PublishedMar 16, 2026
First seenMar 16, 2026
Weakness typeCWE-732CWE-732
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| buffaloamericas terastation_nas_ts5400r_firmware | v ≤ 4.02-0.06 | — |
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