CVE-2026-29516

6.9 mediumEPSS 0.5%

Medium (6.9) in buffaloamericas terastation nas ts5400r firmware. EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

6.9 medium

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

CVSS 3.1

4.9 medium

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-31)
CWE: CWE-732
Published: 2026-03-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

buffaloamericas:terastation_nas_ts5400r_firmware

References

https://buffaloamericas.com/
https://www.vulncheck.com/advisories/buffalo-terastation-ts5400r-excessive-file-permissions-information-disclosure

Check your stack JSON