CVE-2026-19971

MEDIUM CVSS 4.0: 5.3 EPSS 0.28%
Updated Aug 20, 2026
Lb-Link
Parameter Value
CVSS 5.3 (MEDIUM)
Type CWE-287 (Improper Authentication), CWE-306 (Missing Authentication for Critical Function)
Vendor Lb-Link
Public PoC No

A flaw has been found in LB-Link WR1210M 1.0.3. This impacts the function main of the file /www/cgi-bin/backup.cgi of the component Backup Endpoint. This manipulation causes missing authentication.

The attack is only possible within the local network. The vendor was contacted early about this disclosure but did not respond in any way.

Attack Parameters

Attack Vector
Adjacent
Requires local network access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0

Vulnerable Products

lb-link:wr1210m