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Home / CVE DB / CVE-2026-29516
Standard
Vulnerability Identifier

CVE-2026-29516

2026-03-16
Severity Assessment
4.9
MEDIUM
CVSS v3.x Score
Clinical Analysis (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.

Vector Sequencing

Attack Parameters

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Impact Consequences

Technical Impact

Unchanged
Scope
High
Confidentiality
None
Integrity
None
Availability
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Weakness Classification

CWE-CWE-732

View CWE Details ↗
Timeline

Time Line

PUBLICATION
16 Mar 2026
MODIFICATION
17 Mar 2026
Impact Statistics

Key Metrics

CVSS Score
4.9
MEDIUM
Remediation Protocol

Recommended Solution

No automatic solution found. Check vendor references.
Patch Library
No direct patch listed in database.
Recommended Actions for Administrators

Immediate Action Plan

1. Inventory

Identify all affected systems in your infrastructure.

2. Assessment

Assess exposure and criticality for your organization.

3. Mitigation

Apply patches or available workarounds.

4. Verification

Test and confirm effectiveness of applied measures.

Sources & Bibliography
NIST NVD MITRE CVE External Reference ↗ External Reference ↗