CVE-2026-29516
MEDIUMBuffalo TeraStation TS5400R Excessive File Permissions Information Disclosure
Title source: cnaDescription
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)
Core 2
Core References
Product product
https://buffaloamericas.com/
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/buffalo-terastation-ts5400r-excessive-file-permissions-information-disclosure
Scores
CVSS v3
4.9
EPSS
0.0051
EPSS Percentile
39.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-732
Status
published
Products (2)
Buffalo/TeraStation NAS TS5400R
< 4.02-0.06
buffaloamericas/terastation_nas_ts5400r_firmware
< 4.02-0.06
Published
Mar 16, 2026
Tracked Since
Mar 17, 2026