What is CVE-2026-29516?

CVE-2026-29516 is a medium-severity vulnerability in Buffalo Terastation Nas Ts5400r, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 4.9/10. Published 2026-03-16.

How severe is CVE-2026-29516?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in Buffalo Terastation Nas Ts5400r

CVE-2026-29516

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 web…

EPSS: 0.000 (1.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-29516?: CVE-2026-29516 is a medium-severity vulnerability in Buffalo Terastation Nas Ts5400r, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 4.9/10. Published 2026-03-16.
How severe is CVE-2026-29516?: Medium severity. CVSS v3 base score is 4.9 out of 10.