CVE-2026-29516
Medium
Low
Medium
High
Critical
4.9
CVSS Score
Vulnerability 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.
CVSS Metrics
Common Vulnerability Scoring System
Vector String:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack Vector
N
Attack Complexity
L
Privileges Required
H
User Interaction
N
Scope
U
Confidentiality
H
Integrity
N
Availability
N
Severity Details
4.9
out of 10.0
Medium
Weakness Type (CWE)
CWE-732
Incorrect Permission Assignment for Critical Resource
- Description
- The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
- Exploit Likelihood
- High
- Typical Severity
- High
- Abstraction Level
- Class
Key Information
- Published Date
- March 16, 2026
